Field Production of Cut Flowers: Potential Crops

Author: Holly L. Scoggins, Assistant Professor, Horticulture; Virginia Tech

Publication Number 426-619, Posted August 2002

This table provides an overview of genera and/or species suitable for field production of cut flowers in the southeastern U.S. (USDA hardiness zones 6 to 8). These are the most widely-grown species. However, there seems a to be a limitless abundance of species with "specialty cut" potential. Species better-suited to cooler climates and/or greenhouse production have not been included. This information has been distilled from Armitage (1993; 1997), Stevens (1996), and numerous articles from the Cut Flower Quarterly newsletter of the ASCFG (see references). For an overview of culture and marketing of cut flowers, as well as a comprehensive list of resources, see Getting Started in the Production of Field-grown Cut Flowers, Virginia Cooperative Extension Publication 426-618.

Botanical name and (common name) Annual (A)
Biennial (B)
Perennial (P)
Woody (W)
Use: Fresh (F) or Dried (D) Propagation: Seed (S),
Vegetative (V),
Bulb (B),
Corm (C),
or Rhizome (R)
Planting season for the Southeast1 -Harvest period2
-Stage of development
Postharvest Treatment Miscellaneous
Achillea spp. and hybrids (Yarrow) P F, D S, V F - Begin early summer
- Visible pollen
No special requirements;
store at 40F.
Air-dry to preserve.
Achillea suitable for cuts include A. 'Coronation Gold', A. filipendulina, A. millefolium, and A. ptarmica.
Acidanthera bicolor (Absynnian Gladiolus) Grow as A F C F - Late summer
- 1-2 flowers open
Place in preservative
quickly, store at 40-45F.
Store upright.
Cv. 'Muralis' recommended. Harvest period of approx. 3 weeks.
Aconitum spp. (Monkshood) P F S, V Fc - Early summer
- 1-3 basal flowers open on raceme
Floral preservative;
STS may help.
Do not store below 45F
All parts of the plant are poisonous. Not a good performer in the South, prefers cool conditions.
Ageratum hybrids (Blue Flossflower) A F, D S SS -Throughout summer
- Flowers just opening
- does not store/ship well.
Use floral preservative.
Good for local markets
Cv. 'Blue Horizon' recommended. Good summer source of hard-to-find blue color.
Agrostemma githago (Agrostemma) A F S ES -Early summer
-1-2 flowers open on inflorescence
Use floral preservative, store upright at 40F. Dry shipping O.K. Succesive sowings recommended - 2 weeks apart. Cvs. 'Milas', 'Purple Queen'
Allium spp. (Ornamental Onion) P F B Fc - Summer
-1/4 to 1/2 of florets open
Floral preservative, store at 36-43F. Yield declines after two years.
Alstromeria hybrids (Peruvian Lily) P (zones 8-10) F R F or ES - Variable
- First flowers fully colored
STS or other preservative.
Store at 38-40F.
Can ship dry.
A complicated crop with various timing, light and temperature requirements. Hard to compete with Californian, European, and South American growers.
Amaranthus spp. (Love-(Amaranthus) A F, D S S - Summer
- 3/4 flowers on inflorescense are open (for dried - harvest after seed set)
Store at 36-41F in water.
Air-dry upside down.
Many colorful spp. and varieties. A. caudatus lovelies-bleeding) most commonly grown.
Ammi majus (False Queen Anne's Lace) A F, D S F or ES - Late spring
- 80% of flower heads open
Use floral preservative.
Store at 37-40F.
Air dry in darkness to maintain color.
Plants reach 5-6' and require mesh support. Note that the sap causes contact dermatitis. Wear protective gear when harvesting.
Anemone coronaria (Poppy Anemone) P F S, T Fc - Early spring
- Sepals start to separate from the center, but not fully open
Very sensitive to ethylene. Consult the literature for other specifics and techniques for drying. Many cultivars. Greatest market demand prior to Mother's Day.
Antirrhinum majus (Snapdragon) A F S F or ES - Spring
- 1/2 to 2/3 of flowers are open (1/3 open if shipping long distances)
Store in water at 40F.
Preservatives/fungicides necessary for longer-term storage. Must be stored and shipped upright.
Be sure to choose a cultivar bred specifically for field production. Avoid overhead irrigation.
Asclepias tuberosa (Butterfly Weed) P F S, V Fc - Variable (7-9 weeks from planting out)
-1/2 to 2/3 flowers open
Floral preservative, store at 40-45F immediately, some benefit from STS. Plants are late to emerge in Spring, do not disturb crowns. Over-watering and high fertility invites spider mite invasion.
Aster spp. and hybrids (Aster) P F V F or S - Late summer, fall
- 2-4 flowers in inflorescence open
Floral preservative, store at 40F. Asters provide cuts for fall (when little else is flowering. Useful spp. include A. ericoides, A. novibelgii, A. cordifolius, and A tataricus (in the South).
Astilbe x arendsii (False Goat's Beard) P F, D S, V Fc - Early summer
- 1/2 to 2/3 flowers open, upper buds showing color
Immediately put cuts in hot water, allow to cool, then place in preservative. Ethylene-sensitive, pulse with STS. Store at 33-40F. Can be air-dried. Astilbe requires some shading in the South. Adequate moisture must be maintained for maximum yield.
Astrantia major (Masterwort) P F, D S ES - Late spring
- Uppermost flowers open
No special requirements. Silica gel recommended for drying. Astrantia performs poorly at warm temperatures
Buddleia davidii (Butterfly Bush) W F, D V F - Midsummer through frost
- 1/2 flowers on inflorescence open, before open flowers fade
Precut under water. Condition by placing in 80-100F water. Use floral preservative, store at 40-45F Bears flowers on new growth. Can be cut heavily. Cut back to 1/3 height or to the ground in late fall. Buddleia spp. other than B. davidii may prove useful.
Callicarpa spp. (Beautyberry) W F S, V F or S - Fall fruits
- Basal fruits colored, terminal fruits still green, or all fruits colored.
Recut, place in hot water. Can be stored at 32-36F. Remove any foliage from stems. The multi-stemmed shrub flowers on new wood - may be cut back severely each year.
Callistephus chinensis (China Aster) A F, D S S - Late spring
- Outside ray florets open
Pulse with silver nitrate to extend vase life. Store at 33-35F. Cultivars are available in a spectrum of colors. Plants can be grown under cloth to screen-out leafhoppers - the vector of aster yellows virus.
Campanula spp. (Bellflower) P F S, V Fc - Summer
- 1-2 flowers open on inflorescense
Floral preservative. Carnation ChrysalTM recommended. Most Campanula spp. prefer cool temperatures.
Caryopteris incana (False Blue Spirea) P F, D S, V F or S - Late summer
- Buds show color, 1st whorl open
Store in water or preservative at 34-40F Hang upside down to air-dry. Another "summer blue." Harvest the entire stem for longer cuts or harvest the short terminal first and then cut the subsequent laterals (stems shorter, but greater quantities)."
Celosia spp. (Cockscomb) A F, D S S - Summer
- Flowers fully developed
Remove foliage as it declines. Store in water at 36-41F. Hang upside down to dry. Three main forms of Celosia - var. cristata, var. spicata (wheat celosia), and var. plumosa.
Centranthus ruber (Red Valerian) P F S ES - Late spring
- 1st flowers in inflorescence fully open
Floral preservative. Amend beds to raise pH above 6.0. Limit fertilizer. Not a great performer for the South.
Consolida spp. (Larkspur) A F, D S Fc - Spring
- 1/4 to 1/3 of basal flowers on stem
Highly sensitive to ethylene; STS or preservative with silver recommended. Store upright at 36-41F. Cultivars available in white, pink, lilacs and shades of blue. A variety of pathogens attack Consolida - consult the literature for control recommendations.
Cornus spp. (Dogwood) W F, D V F or S - Spring flowering, late fall stems
- For stems - after leaves have dropped; for flowers - before pollen formation. Flowers can be forced
- cut when buds are swollen
Place in floral preservative. Store at 65-70F to force Condition fresh flowering stems by placing in hot water. Can grow in partial shade. C. florida and C. mas are grown for their flowers, C. sericea cultivars have bright red or yellow stems.
Cosmos hybrids (Cosmos) A F, D S S - Summer into fall
- Petals on 1st flower just opening, not flattened out. Allow flowers to completely open for drying.
Cosmos do not store well good for local markets Keep at 36-40F if necessary. Use preservative solution. Sequential plantings recommended. There are many good cultivars. The 3-5' stems require support mesh.
Craspedia (Drumstick) A F, D S F or S - Spring/summer
- Yellow flower heads fully developed.
Floral preservative helpful but not necessary. Hang to air-dry. Requires good drainage. Do not overhead-irrigate.
Crocosmia x crocosmiiflora (Montbretia) Bulbous P F, D C W - Summer
- 1st few buds showing color but need not be open
No special treatments. Flowers and sword-like foliage may be air-dried. Plant corms 3" deep and 6" apart. Needs good
Dahlia hybrids P in zones 7-10 F, D S, V, T S - Summer
- 3/4 to fully open but before outer petals decline
Water or opening solution. Store (37-40F) or ship in water. Dry in silica gel. Allow plenty of space (2' x 2') between plants. Support required. Various pinching and disbudding techniques - consult the literature. Valuable for local markets, but require a rigorous preventative spray program
Delphinium hybrids A in the South F S Fc - Spring
- 1/4 to 1/3 of flowers on stem open
Pulse cuts with preservative + STS -or treat with EthylBloc Avoid overhead irrigation. Provide support for stems. Fungicides are beneficial.
Dianthus barbatus (Sweet William) B F S, V Fc - Spring
- 10-20% of flowers in inflorescence open
STS for maximum vase life. Can store dry at 34-36F or wet at 40F. Move trans plants to field early in the fall so plants are established before cold temperatures.
Echinacea purpurea (Purple Cone Flower) P F, D S, V F or S - Midsummer until frost
- When petals are expanding. Can use just the "cone"
- remove petals once disk is desired color
Floral preservatives; note petals will droop. Can remove petals and air-dry the cone. White cultivars also available.
Echinops bannaticus (Globe Thistle) P F, D S, V Fc - Summer
1/2 to 3/4 of the globe has turned blue
No special treatment.
Store wet at 40F to intensify color. Air-dry, do not remove leaves.
Some shading may be helpful. The species E. ritro is also excellent for cuts/drying.
Emilia javanica (Tassel Flower) A F, D S F or S - Summer
- 1st flower is fully opened
Does not store well - good local crop. No special treatment. Extremely prolific/floriferous; holds up to heat and humidity. Can be air-dried (fades a bit).
Eryngium spp. (Sea Holly) P F, D S, V Fall. Cold required for flowering. - Summer
- Flower head + bracts are blue
No special treatment. Flowers persist longer than foliage. 38-40F intensifies color. Can tolerate some shading - reduces yield but enhances color (especially in the South). Recommended species include E. planum, E. amthystinum, and E. alpinum.
Euphorbia marginata (Snow-on-the-mountain) A F S S - Fall
- Bracts fully colored, flowers not yet opened
Note that the sap can be an irritant. Removing foliage underwater causes the latex sap to coagulate. No other special treatment Showy variegated bracts surround inconspicuous flowers. Bracts have a relatively long vase life.
Eustoma grandifluorum (Lisianthus) P, but grow as A F S S - Summer - 1 flower in inflorescence fully colored (remove central bud) Flower color will fade if stored in low light. Use a floral preservative solution. Long seedling stage - plants best purchased as mature plugs. Plants require excellent drainage and stem support in the field.
Gladiolus spp. Treat as an A F B S - Summer
- 1 to 5 flowers on spike showing color
Floral preservative containing sugar. Condition stems overnight at 70F. Store at 35-40F. Note sensitivity to fluoride present in municipal water. Sequential planting provides a much longer harvest period. Watch for thrips, Botrytis, and various corm rots. Corms can be dug up and replanted north of zone 8; usually new corms are used each year.
Gomphrena globosa (Globe Amaranth) A F, D S S - Summer
- Flowers showing color but not fully opened
Fresh flowers best for local markets; storage not recommended. Air-dry upside-down. Remove foliage. Great annual crop for the Southeast. Can be mechanically harvested. Use the largest, cleanest seed available. Two recommended cultivars are 'Strawberry Fields' and 'Cramer's Raspberry'
Gypsophilia paniculata (Baby's Breath) P, can grow as A in South F, D S, V Fc - Throughout summer
- Fresh: 60-70% flowers open; Dried: 80-90% flowers open
Use floral preservative - acidify water to pH 3.5. STS and germicide recommended. Air dry or use a glycerin solution - consult Armitage (1993) for details. Best results when grown at higher pH - amend soil with dolomitic lime. Requires good drainage.
Helianthus annuus (Sunflower) Annual F, D S SS - Thoughout summer if sequentially sown
- Flowers almost completely open
1 hour pulse with 0.01% non-ionic detergent solution (Triton X-100); store 36-41F Try the new pollenless cultivars. Some perennial Helianthus species are also suitable for cuts.
Hydrangea spp. W F, D V F - Summer
- 1/2 of flowers on panicle open. Cut H. macrophylla when fully open.
May benefit from searing. Condition for 12 hours in cold, slightly acidic (pH 4.0) water. Many spp. are suitable for fresh or dried cuts. H. arborescens 'Annabelle'; H. macrophylla, H. paniculata, and H. quercifolia.
Ilex verticillata (Winterberry Holly) W F V S - Spring
- Before fruit reaches maturity
Can remove foliage if desired. Store stems dry at 32-33F. Both the deciduous and evergreen hollies are useful in the florist trade. Be sure to interplant some male hollies as pollinators - only the female plants bear fruit.
Iris hybrids (Dutch Iris) Ap F B F - Spring
- Flower fully emerged from sheath (pencil stage)
Rehydrate in warm (100F) water. store upright at 32F. Use largest bulbs available. Plant immediately upon receipt. Cultivars of the perennial Siberian iris (I. siberica) also produce nice cuts, seed pods, and foliage.
Lavatera trimestris (Mallow) A F S S - Summer
- Flowers are uncurling, just beginning to open
Best for local markets; storage not recommended. Susceptible to myriad pests and diseases - spray accordingly. Grow on the dry side with generous spacing/aeration.
Lavandula spp. (Lavender) P F, D S, V F or S - Summer
- 1/2 of florets open (showing color)
Store at cool temps. Dry in cool, dry conditions Requires excellent drainage. Grow fairly dry. Avoid dwarf cultivars for cuts.
Liatris spp. (Blazing Star, Gayfeather) P F S, V, C Fc - Late summer
- 3-4 flowers open; fully opened to dry
Preservative/sucrose solution prolongs vase life. store at 32-35F with good air circulation. Air dry upside-down, strip leaves Many superior cultivars for cuts; L. spicata 'Kobold' and Floristan Violet
Lilium hybrids (Lily) Ap, P F B Fc - Summer
- 1st flower not open but fully colored
Pulse with STS, then store in preservative solution. Can store wet or dry (wrap flowers in poly film) at 33F Consult DeHertogh (1989) for cultivars and hybrids postharvest specifics. Consult Armitage (1993) for discussion of field production in the Southeast (+ other potential Lily spp. for cuts)
Limonium sinuatum (Statice) A F, D S Fc or ES - Summer through fall
- 80% flower head open
No special requirements; can store dry for 2-3 weeks at 36-41F. May be air-dried or preserved with glycerin. Perennial spp. L. latifolium, L. tataricum and L. altaica are also excellent cuts.
Lobelia spp. and hybrids P F S, V F - Fall
- 1/3 to 1/2 flowers open on stem
Floral preservative. Requires generous watering and light shade for best performance. Good for late summer production.
Lunaria annua (Money Plant, Honesty) B D S Fc - Spring
- Pods are fully developed
Air dry upside-down in a dark place. Fresh cuts are o.k. for local markets but the flowers tend to shatter. Biennial. Light shade necessary in the South.
Lysimachia clethroides (Gooseneck Loosestrife) P F S, V Fc - Summer
- Flowers 1/3 to 1/2 open
Floral preservative drastically extends vase life. Store at 36-41F. Vigorous, rhizomatous spreader. Provide mesh support.
Narcissus hybrids (Daffodil) P F B Fc - Spring
- Singles - bud closed but showing color (goose-neck stage) Doubles - flowers beginning to open.
Preservative not necessary. Store upright at 32-36F. Daffodil "sap" is detrimental to many other cut spp. - see Armitage (1993) for pretreatments. Consult Armitage (1993) or your local bulb specialist for appropriate cultivars.
Nerine sarniensis (Guernsey Lily) P F B Fc - Late summer, fall
- 1st flower beginning to open. Note that flowers appear prior to the foliage in the fall. Bulbs go dormant in warm weather.
No special preservatives required. Store fairly warm - temperatures below 41F will damage flowers. Some shade beneficial in the South. Behaves similar to Lycoris - Resurrection lily.
Nigella damascena (Love-in-a-mist) A F, D S F or ES - Summer
- Flowersfully colored but petals not fully separated. Pods: harvest when purple-bronze
Use preservative, store only if necessary at 36-41F. Can air dry fully-opened flowers or seed pods. Successive plantings recommended. Some shade is beneficial in the South. Best pods are from terminal flowers.
Paeonia hybrids (Peony) P F, D V Fc - Spring
- 1st true color appears at top of tight bud. Double flowered types should be further developed than singles, also red cvs. more so than whites
Store at 32-36F in water. Remove lower leaves from stem. Several options for drying. Peonies are a profitable crop, however, culture in zone 7 is a bit more complicated than in northern zones. Consult the literature for appropriate cultivars and growing tips.
Phlox paniculata (Garden Phlox) P F V F - Early summer
- 1/2 flowers open on inflorescence
Sensitive to ethylene. Treat w/ a silver-based preservative + floral preservative. Store at 38F. Pinch once plants are established, leaving 4-5 leaf pairs. Use mildew-resistant cultivars.
Physalis alkekengi (Chinese Lantern) A F, D S S - Summer
- Fruit fully colored
Store fresh at 36-41F in water. Hang stems to air-dry. Keep well-watered to prevent malformed fruit.
Phystostegia virginiana (Obedient Plant) P F S, V Fc - Summer
- Spikes are fully elongated yet flowers not open
Floral preservative, sugar, and STS pulses all improve vase life. Quickly cool and store at 40F. Plants are vigorous and spread rapidly. Division every 2-3 years is recommended.
Platycodon grandiflorus (Balloonflower) P F S, V Fc - Summer
- 2-3 flowers open on stem
Floral preservative, can store at 40F. Provide stem supports. Best yield after the first year.
Polianthes tuberosa (Tuberose) P F T ES - Late summer
- 2-4 flowers open, others showing color
Store at 45-50F (but not below) in water. Wonderful fragrance. Survives zone 7 winters if well mulched. Lift bulbs in more northern zones.
Salix spp. (Willow) W F, D S, V F or S - Spring (for catkins) fall (for stems)
- Harvest leafless stems at peak of color
Place in water after harvest. Remove foliage if necessary. Cut willows back to the ground in early spring. Grow different spp. for catkins, contorted stems, or colorful winter stems (red, gold).
Salvia leucantha (Velvet Sage, Mex. Bush Sage) A F, D V S - Fall
- 1st 3-4 basal flowers fully opened
Water w/ floral preservative. STS pulse useful. Can store briefly at 35-40F. Air-dry. Plants form large clumps - space accordingly (1.5-2' centers). Other perennial and half-hardy Salvias are gaing garden popularity - many species may make fine cuts.
Saponaria officianalis (Bouncing Bet) P F S, V S - Summer
- 1st flowers open
Water w/ floral preservative. Store at 35-40F. Do not overfertilize. Pinch back in spring to encourage branching.
Scabiosa spp. (Pincushion Flower) A, P F S, V SS (annual) F (perennial) - Summer
- S. caucasica (perennial):as soon as flower color visible. S. atropurpurea (annual): when flower is almost fully opened
Water w/ floral preservative. Store at 40F. The annual Scabious is more heat tolerant than the perennial species.
Solidago spp. (Goldenrod) P F, D S, V F or S - Early fall - 1/2 of flowers open on inflorescence Water w/ floral preservative. Store at 40F in water or dry. Air dry flowers upright. Prone to rust (Coleosporium asterum). Do not plant near pine trees (alternate hosts to the rust).
x Solidaster luteus (Solidaster) P F, D V F or S - Early fall
- 1/3 flowers open
Water with floral preservative. Store at 40F in water or dry. Air dry flowers upright. Hybrid between Solidago and Aster. Also susceptible to rusts and aster diseases.
Thalictrum spp. (Meadow-rue) P F, D S, V F - Late spring
- Most of the flowers are open
Water with floral preservative. Storage not recommended. Both Thalictrum delavayi and T. aquilegifolium are useful as airy filler flowers. Some afternoon shade may be helpful.
Trachelium caeruleum (Throatwort) A F S Early F - Late winter, spring
- 1/4 to 1/3 of flowers open
Store in water. STS pulse helpful but not necessary. Store at 40F. A great blue color. Difficult to grow Trachelium during the summer in the South.
Triteleia laxa (Brodiaea) P F C F or W - Late spring
- 4-6 flowers open
Water with floral preservative - recut stem at each water change. This West Coast native requires good drainage. Soil fungicides are helpful.
Tulipa hybrids (Tulip) A F B Fc - Spring (cv.-dependent)
- 1/2 to 3/4 of the flower is colored
Store at 32-35F, wet or dry. Note phototropic response - stems bend toward light. Consult the literature for recommended growth regulators and other post-harvest handling techniques. Extend the time of harvest with early, mid, and late spring blooming cultivars.
Veronicastrum virginicum (Culver's Root) P F S, V F - Early summer
- Remove terminal flower, cut when laterals are 1/3 open
Water with floral preservative. Storage not recommended. Pinching out the center flower produces fuller, more attractive inflorescences.
Zantedeschia spp and hybrids (Calla Lily) P F R S - Early summer
- Cut when spathes unroll; almost fully open
Pretreat cuts with a conditioning solution. Store at 42-46F, ship dry. Clay soils and poor drainage lead to bacterial soft rot (Erwinia spp.) of the rhizome. Refer to the literature concerning the use of growth regulators (increase # of stems), prevention of various pathogens and production techniques for growing Callas.
Zinnia elegans (Zinnia) A F, D S SS - Throughout summer
- Flowers are fully mature
Floral preservative; store at 36-40F. Do not use overhead irrigation: promotes powdery mildew. 'Oklahoma' and 'Benary's Giant' series recommended.
1 Planting Season: Fall (F), Spring (S), F. The code Fc means to plant out in fall because the species requires or benefits from cold temperatures in order to flower. Pre-chilled (vernalized) plugs or bulbs can be planted in the spring.
2 Harvest Period: The general season for harvesting the plant is listed. Flowering time often varies by cultivar. Within a species, planting several cultivars with a succession of targeted blooming times can extend the harvest period.

References

Armitage, Allan M.. 1993. Specialty Cut Flowers. The production of annuals, perennials, bulbs, and woody plants for fresh and dried cut flowers. Varsity Press/Timber Press, Portland, OR (800.327.5680)

Armitage, Allan M.. 1997. Herbaceous perennial plants, 2nd ed. Stipes Publishing, Champaign, IL

Stevens, Alan. 1996. Field grown cut flowers: a practical guide & source book. Avatar's World (800.884.4730)

Cut Flower Quarterly. The Association of Specialty Cut Flower Growers. ASCFG, Inc. MPO Box 268, Oberlin, OH 44074. (440.774.2887)

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