General Season tips
- Plant perennials. Fall installation gives plants time to
develop a stong root system; most perennials flower in the spring, but if
planted then, they may not bloom the first year.
- Split and replant overgrown bulbs. Dig up the bulb after the
foliage has died an allow it to dry thoroughly. (After drying, bulbs can be
split and replanted.)
- Cut perennials to the ground after hard frost and use foliage
- Gather fallen leaves for mulch and compost use.
- Dig summer-blooming bulbs after the first killing frost and
save for next planting season.
- Take advantage of cool weather by planting trees, shrubs, and
evergreens; use root-stimutating fertilizer to promote root growth.
- Plant spring-flowering bulbs and work bone meal into bottom of
planting holes for better growth.
- Divide and replant perennials such as peonies and irises.
- Water young trees and shrubs.
- Now is the best time to seed new lawn, patch bare spots, and
install sod (also, there isn't as much competition with weed seeds now). Do it
before September 15.
- Plant chrysanthemums, pansies, asters, and flowering kale for
- Apply weed-killer and fertilizer for lawn care (but not to
newly seeded areas).
- Clean garden beds and work compost into soil for spring
- Remove dead annuals and add them to compost.
- Cover tender roses before temperatures dip below 25
- Rake and recycle leaves for better air circulation and
- Mow lawn until frost stops growth-tall, matted grass encourages
- Wrap young and thin-barked trees to protect against sunscald
- Remove garden debris after the first frost to help minimize
soil diseases and insects.
- Early to mid-month, cover perennials with mulch to protect the
crowns of the plants from the alternate freezing and thawing.
- Put down an inch of hay or straw mulch over shallow-rooted
perennials to prevent frost heaving (plants being pushed out of soil by
- Water all the trees, shrubs, and evergreens (especially new
plantings) just before the ground becomes frozen.
General Season Tips
- Install hardware cloth or other fencing that extends above snow
level to keep animals away.
- Check perennials for signs of heaving; if this occurs, re-cover
- Oaks, honey locusts, crab apples, pears, mountain ash, and
hawthorn are best pruned now.
- Keep evergreens and shrubs free of heavy snow.
- Determine what flowers and planting techniques worked last
season and plan accordingly.
- Finish dormant pruning of ornamental trees.
- Remove black-knot swellings on plum, chokecherry, and cherry
General Season Tips
- Begin feeding bulbs with liquid fertilizer as they emerge
from the ground.
- Remove dead leaves from hostas.
- Prune summer-flowering shrubs in early spring before new
growth, since they usually bloom from new wood.
- Uncover and remove winter mulch from roses, spring bulbs, and
- Divide and replant overgrown perennials.
- Till flower-and vegetable-garden soil and add composted cow
manure, rice hulls, peat moss, or composted leaves.
- Plant frost-tolerant pansies and Johnny-jump-ups for early
- Plant trees and shrubs as soon as the ground is dry enough for
digging; late frost and snow will not hurt newly planted trees.
- Apply fresh mulch around trees and shrubs for weed
- Prune hedges and summer-flowering shrubs; check for damage;
remove broken branches.
- Remove tree wrap when snow melts.
- Fertilize trees and shrubs.
- Apply crabgrass preventer to lawns.
- Fertilize spring bulbs when foliage emerges.
- Wait until the ground is frost free before removing mulch; is
temperatures rise early in the season, remove part of the mulch but leave at
least two to three inches
- Till or spade the soil deeply; if desired, add a slow-release
- Evrgreens can be pruned at almost any time except late in the
- Work fertilizer into vegetable and flower gardens before they
- Fertilize roses and begin manitenance program against black
spot and mildew.
- Mulch flower gardens to conserve moisture and reduce weed
- Protect gardens from deer browsing.
- Plant summer-blooming bulbs.
- Plant Minnesota Grown annuals and geraniums after frost is no
longer a danger.
- Apply pre-emergent weed control in shrub and planting
- Remove accumulated leaves and debris from underneath evergreens
- Prune fosythia, azaleas, and lilacs after they have flowered;
all spring flowering shrubs should be pruned right after flowering.
- Begin apple-tree spray programs after blossoms drop.
- Make sure freshly planted trees and shrubs are watered weekly,
especially during dry periods; continue to water throughout the season.
- Prune mugho pines when new growth is fully grown soft.
- Fertilize established trees, evergreens, and shrubs; start a
- Rake, overseed, and fertilize the lawn; avoid applying
crabgrass preventer to newly overseeded areas; seed new lawns while nights are
still cool and the weather is wet.
- Control dandelions and creeping Charlie by applying hericide
before heads are formed.
General Season Tips
- Deadheading (removing faded flowers and seed heads) directs the
plants energy to more flowering rather than to producing seeds-it's especially
recommended for annuals.
- Pinch back phlox, and mums to make them more
- Fertilizers are best applied to azaleas, rhododendrons, and
blueberries in spring or early summer.
- Use grass clippings as mulch around flowers. (But, do not use
those that have had herbicides applied.)
- Leave the last rose blossoms of summer to encourage
- Apply slow-release fertilizer in midsummer to provide good
plant performance until frost.
- Stake larger varieties of perennials such as delphiniums.
- Begin leaf-spot control on tomato plants and stake young tomato
plants; late-staking contributes to blossom end rot.
- Tie climbing roses to trellises.
- Perform last pinching of chrysanthemums to promote compact,
- Do last picking of rhubarb at month's end to allow roots to
store energy for next season.
- Mulch your garden after the soil has warmed up later this
- Fertilize lawns, flowers, and gardens, and continue
- Prune and shape new growth on arborvitae, junipers, and
- Trim evergreens and hedges.
- Prune pines, spruce, and fir trees in early to mid month.
- Remove spring bulb foliage as it browns
- If spring-flowering bulbs aren't doing well, dig up bulbs after
the foliage has died and divide.
- Before late summer, transplant and divide perennials.
- Water, weed, fertilize, and harvest vegetables.
- Continue to water young trees and shrubs
- Deadhead annuals for more blooms.
- Divide irises and day lilies.
- Complete evergreen pruning before the end of the month to
prevent winter injury.
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