Mum, Chrysanthemum

(Chrysanthemum x morifolium)

Contact: Diane Relf, Extension Specialist, Environmental Horticulture

August 1996

DESCRIPTION:

Leaves are dark green, lobed, and oval on tough woody stems. Cushion shaped with many rows of ray flowers. Many forms are available, including daisy, spoon, spider and "football".

FLOWER COLORS:

Yellow, Red, White, Pink, Orange, Purple

AFTER FLOWERING:

Hard to reflower greenhouse grown mums indoors. Hardy varieties may be planted outdoors. Cut back to produce new growth.

AVAILABLE:

Year Round

CONTAINER:

Small container, large planter.

LIGHT:

Low to medium to high. Tolerates most light levels well.

WATER:

Frequent. Water thoroughly, keep soil evenly moist to touch (not saturated). Don't let sit in water.

TEMPERATURE:

Cool. 50 - 60 (degrees F) days, 45 - 55 nights.

HUMIDITY:

Average

FERTILIZER:

Not necessary while flowering

SOIL MIX:

1 to 2 parts sphagnum peat moss, 1 part vermiculite, 1 part sterilized loam, and 1 part clean coarse sand or Perlite.

PROPOGATION:

Tip and stem cuttings

SELECTION GUIDE:

Select sturdy, shapely plant with healthy foliage and bright, clear colored flowers. New flower buds desirable. Check leaf axils for insects. Avoid plants with disease or insect damage.

CARE:

Very challenging. Attractive while in bloom. Difficult to cultivate year round and rebloom. Usually discarded after blooms fade.

OTHER CULTIVARS:

`Claret Glow' - red flowers (Aug.); `Pinksmoor' - double, deep pink (Sept.); `Mason's Bronze' - orange-bronze (Nov.), and many, many more.

PROBLEMS:

Aphids: Wash with soapy water or use an insecticide.
Spider mites: Wash with soapy water and apply miticide.
Leaf miners: Remove and destroy infected leaves.
Weak and spindly growth: Place in brighter location.

COMMENTS:

Several species are cultivated for pyrethrum insecticide. Popular cut flower. One species is grown in the Orient as a leaf vegetable. Tolerate most light conditions when in bloom. After blooming they need bright light. Often used in mass displays in large interior planters.

This material was developed by Carol Ness as part of the Interactive Design and Development Project funded by the Kellogg Foundation. Mary Miller, Project Director. Diane Relf, Content Specialist, Horticulture. Copyright 1989 by VCE.

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