Gardening
Tips for October -
The Best Planting Month of the Year
by Michelle
Le Strange, UC Master Gardener Advisor
The cooling weather can make October the most pleasant month
of the year to garden. It's also the perfect time to plant nearly
anything. The cooler air temperatures, coupled with warm soil
temperatures, are ideal conditions to promote excellent root growth.
Plants established in the fall suffer less stress, are more deeply
rooted, and get off to a faster start than their spring planted
sisters, who often require a whole year just to get established.
Fall planting is also the lazy gardener's method - nature keeps
them watered through the fall and winter, making less work for
us!
PLANT: Now's the time to plant trees, shrubs, perennials,
ground covers, cool-season lawns, winter annuals, winter vegetables
and native plants. A big exception, however, is sub-tropical plants.
Don't plant anything that is even borderline frost-tender in the
fall. This includes citrus, palms, potato plants, bird of paradise,
potato bush, etc. Anything that froze last winter needs to wait
until spring to be planted.
Good winter annuals from 6-packs are snapdragons, pansies, delphinium,
calendua, stock and Iceland poppies. Sow seeds of larkspur, clarkia,
sweet peas, and California poppy for an early spring show.
In the vegetable garden, plant carrots, beets, lettuce, spinach,
snow peas and turnips from seeds. Look for 6-packs of cauliflower
and broccoli to plant now.
Over-seed warm-season lawns with annual rye. Seed bare patches
in cool-season lawns and keep them moist.
WATER: Reduce watering to about twice a week. Plan to
shut off your water system when the rains arrive. Make sure all
trees are watered deeply going into dormancy. Place a hose at
the base of each tree and let it trickle for several hours.
FERTILIZE: Cool-season lawns, roses, flowering annuals
and perennials to promote fall growth. Don't fertilize frost tender
plants like citrus or palms. The new growth is much more susceptible
to frost damage. It is also a little too late to fertilize bermuda
lawns for continued fall color. Fertilizing now promotes Spring
Dead Spot Disease, which shows up as large holes in the lawn in
spring.
PRUNE: Deadhead and shape roses for a final flush of bloom.
WEED: Keep pulling those weeds. Remember one year's seeding
is seven years weeding! Even difficult weeds like spurge and nutsedge
can be kept in check by faithful weeding. Try to pull weeds when
the soil is moist from watering to remove most of the roots and
nutlets.
Spray unwanted bermudagrass with Roundup early in the month.
As temperatures cool off bermudagrass becomes less active and
Roundup is less effective on it. Be extremely careful when using
general herbicides like Roundup or broadleaf weed killers containing
dicamba or triclopyr in the fall. Roots of trees and shrubs are
very active this time of year. A careless spraying near the surface
roots of a prized plant could lead to a disastrous loss.
If necessary, apply a preemergence herbicide to lawns to protect
against winter annual weeds, especially annual bluegrass and broadleaf
weeds in bermuda lawns
MAINTAIN: Consider aerating your lawn to boost its health
and vigor. Aeration removes small plugs of soil from the lawn
to reduce compaction and water run-off. It also improves rooting,
allows better water uptake, enhances fertilizer use and speeds
up thatch breakdown. Lawn aerators are available for rental; many
lawn care companies also offer this service at a reasonable cost.
COMPOST: Layer brown and green materials and keep them
moist to create wonderful compost. Clear your gardens of fallen
fruit, leaf litter, dead annuals and summer vegetables. Layer
with grass clippings and green garden waste and you're cooking.
Don't add dirt, rose clippings, or diseased plants to the pile.
Unless you're willing to swear your weeds are seed-free, don't
add them to the compost pile, either. Think twice about putting
in any plant that has gone to seed, unless you'd like to see it
sprouting up all over your garden.
LAST but Not Least: Halloween's around the corner. Welcome
the season with an autumn arrangement of dried cornstalks, gourds,
pumpkins, and Indian corn to perk up your front porch, mailbox
or light post.
October 2, 2003