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MAY
3 & 4. Fullerton
College Spring Plant Sale. Noon to 4:00 p.m. Fullerton College
Horticulture Department.Fullrton, California http://www.horticulture.fullcoll.edu/SpringPlant.shtml
Gathering
of Gardeners. Festival and Symposium. Cambria, California. (805)
927-6114. http://www.gardenersevents.com Canada
MAY
9 & 10. Fullerton
College Spring Plant Sale. Noon to 4:00 p.m. Fullerton College
Horticulture Department. Fullerton, California http://www.horticulture.fullcoll.edu/SpringPlant.shtml
MAY
10 & 11. Gardeners’ Garden Tour. Wing Haven Gardens and Bird Sanctuary.
Charlotte, North Carolina. (704) 331-0664. http://www.winghavengardens.com
Annual
African Violet Show & Sale. Flamingo Gardens. Davie, Florida.
(954) 473-2955. http://www.flamingogardens.org
Watch for those nighttime
frosts...
Miss April is a fickle month!
HOUSEPLANTS
April Pot-up roots of tuberous begonias and caladiums for transplanting
to the garden later.
Prune, repot, and clean houseplants as needed
Start seeds of warm-season crops for transplanting later to the garden.
Keep Easter lilies in a bright, cool location out of direct sunlight.
Water as soil begins to dry. The yellow pollen-bearing anthers inside
the flower can be removed to prevent staining of the petals.
WOODY
PLANTS AND TREES
April
Plant a tree in celebration of Arbor Day. Check the ArborDay websie for
the offiial date in your state.
Bare-root stock should be planted before new top growth begins. Balled-and-burlaped
and container stock can still be planted later in spring.
Remove and destroy overwintering bagworms from landscape trees and shrubs.
Follow home orchard spray schedule to control insects and diseases. While
trees are in bloom, use a pesticide containing fungicide only and no insecticide
and thereby avoid injury to bees. Read and follow all label directions.
LAWN
AND LANDSCAPE
April Seed bare spots.
Apply pre-emergence herbicides to control crabgrass. The herbicide siduron
is the only crabgrass preventer that can be used on newly seeded
lawns.
FLOWERS AND VEGGIES
April
Plant cool-season vegetables and flowers as soon as the ground has dried
enough to work.
Harden off transplants before planting outdoors by gradually exposing
the young plants to outdoor conditions of wind, brighter sunlight, and
lower moisture.
Plant or transplant asparagus, rhubarb, and small fruit plants such as
strawberries and brambles.
Divide rhubarb and replant, if last year’s planting produced seedstalks.
Plant sections of certified, disease-free potato “seed” tubers.
Remove winter mulch from strawberry beds as soon as new growth begins,
but keep the mulch nearby to protect against frost and freezes and to
help keep weeds under control.
Remove weak, diseased, or damaged canes from raspberry plants before new
growth begins.
Remove old fruiting canes (if not removed last year), and shorten remaining
canes if necessary.
Prune grape vines to remove dead or weakened limbs, and repair support
trellises as needed.
Keep
ahead of the weeds!.
Turn
the compost.
Sharpen
Tools
Test and amend your soil
Prune flowering shrubs when they finish blooming.
Plant and divide perennials
Specifically...
In
the Mid-Atlantic States
Direct sow and transplant hardy annuals toward the end of the month, when
night temperatures stay above 55 degrees F.
Plant fruit trees and shrubs and perennial vegetables
Transplant and seed vegetables after danger of frost.
Try to prune roses before bud break. If you’re running late, do them ASAP.
In the Mid-West & Northeast states
Start seeds of warm-season vegetables and flowers.
Direct seed cool season vegetables and flowers when the ground is able
to be worked.
Begin hardening off cool season seedlings, to transplant at the end of
the month.
Begin dividing perennials.
In the Pacific Northwest
Work on your soil. Add amendments if needed and plow under any cover crops
planted last season, before they go to seed.
Begin planting out transplants, if the ground is not too soaked.
Get greens started by direct seeding outdoors.
Plant a little each month, for succession harvests.
Divide perennials during cool, rainy season. Keep row covers handy for
cold snaps.
Along the Pacific Coast
Plant warm weather lovers.
Plant and feed perennials
Thin fruit on trees to about 4-5" apart, to encourage the remaining fruit
to mature to full size.
Shop for azaleas, clematis and other flowers in bloom in garden centers.
Add mulch where needed, especially around tree and shrub roots.
In the Southwest
Plant warm weather lovers.
Feed perennials
Thin fruit on trees to about 4-5" apart, to encourage the remaining fruit
to mature to full size.
Fertilize Wisely. I mix two tablespoons of liquid fish fertilizer with
1 tablespoon of seaweed, Add mulch where needed, especially around tree
and shrub roots. Enjoy the wild flowers in bloom
In the Southeast
Be prepared for cold snaps at night. Use row covers newspapers or sheets
to protect seedlings.
Start seeds indoor of warm season vegetables and flowers if you haven’t
yet. Stake perennials before they get too tall. Finish pruning roses.
Remove dead and diseased wood first. Hybrid teas can be cut back hard,
to a new shoot.
Check on cool season crops for harvesting. Direct seed in the vegetable
garden toward the end of the month.
Begin transplanting warm season seedlings outdoors, at the end of April
when the soil has warmed and night temperatures stay above 50 degrees
F.
Give your bulbs some food once they finish blooming and allow the foliage
to remain until it begins to turn yellow.
Feed fruit and nut trees and bushes.