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How to Transition from Summer to Fall in the Garden

Posted on by admin
10
Sep

Refresh tired beds, add compost, swap out annuals

Late summer’s blooms are fading, nights are cooling, and the first frosts aren’t far off. Now’s the time to reset beds, feed the soil, and swap heat-weary annuals for fresh fall color. A little work now sets you up for a longer, better-looking season—and a stronger spring.

Fresh compost, cool-season annuals (mums, pansies, ornamental kale/peppers), and fall perennials are in stock at Donaldson’s Greenhouse.

Your weekend game plan (fast & effective)

  1. Walk & flag trouble spots: spent annuals, bare patches, overgrown perennials.

  2. Clean up smart: remove diseased foliage; deadhead, but leave healthy seedheads you want for birds.

  3. Improve soil: top-dress beds with compost; refresh potting mix in containers.

  4. Divide & move spring/early-summer perennials; replant promptly and water well.

  5. Swap annuals for fall performers; tuck in cool-season accents.

  6. Edge, mulch, water: crisp edges, a light mulch top-dress, then a deep soak.

Clean up (but keep the good stuff)

  • Pull heat-worn annuals and any plants with powdery mildew, rust, or leaf spot—don’t compost diseased debris.

  • Deadhead selectively: keep color coming on hardy bloomers (rudbeckia, salvia).

  • Leave habitat: consider keeping some coneflower and sedum seedheads for winter interest and birds.

Feed the soil (your fall superpower)

  • Top-dress 1–2″ of compost over beds; let worms work it in.

  • Aerate lightly with a fork where soil is compacted.

  • Skip heavy fertilizers now—focus on organic matter.

  • Need compost by the bag or in bulk alternatives? Check options at Donaldson’s Greenhouse.

Divide, move, and edit perennials

  • Divide daylilies, hosta, bearded iris, and other spring/early-summer bloomers now.

  • Wait on dividing fall bloomers (asters, mums) until spring.

  • Relocate sun lovers to sunnier spots as the canopy changes.

Swap in fall color (instant refresh)

  • Staples: Garden mums, pansies/violas, ornamental kale and cabbage, ornamental peppers.

  • Texture & height: Add grasses (fountain grass, feather reed, blue fescue) for structure.

  • Cool combos:

    • Amber + Plum: Bronze mums + purple peppers + burgundy grass

    • Frost & Flame: White mums + blue fescue + ‘Black Pearl’ peppers

    • Harvest Mix: Yellow mums + kale + trailing ivy

  • In beds, mass in drifts (groups of 5–9) for impact.

Lawn & leaves (quick tune-up)

  • Mulch leaves into the lawn with your mower—free organic matter.

  • Overseed thin spots while soil is still warm and days are cool.

  • Feed lightly with a fall lawn fertilizer (low nitrogen, higher potassium).

  • Dethatch or core-aerate if compaction is an issue.

Watering, mulch & frost-readiness

  • Deep water weekly during dry spells so roots re-establish.

  • Mulch 2″ to moderate soil temps and reduce heaving.

  • Have covers ready (row cover/frost cloth) for those first chilly nights; containers can be pulled close to the house for a few extra degrees of protection.

Plant for spring—now

  • Bulbs (tulips, daffodils, crocus, hyacinths, alliums) go in once soils cool.

  • Follow the 3×-depth rule (plant bulbs at three times their height).

  • Group 7–15 bulbs per hole for show-stopping clumps.

Containers: swap, stuff, and shine

  • Refresh with tight-budded mums, ornamental peppers, and a thriller grass.

  • Use quality potting mix, not garden soil; water until it runs from the drain hole.

  • Tuck in trailing ivy, creeping jenny, or pansies to finish the rim.

Quick checklist

  • ☐ Remove spent annuals & diseased foliage

  • ☐ Top-dress beds with 1–2″ compost

  • ☐ Divide/move spring-blooming perennials

  • ☐ Install fall color (mums, pansies, kale, peppers, grasses)

  • ☐ Overseed lawn thin spots; mulch leaves

  • ☐ Water deeply; add a 2″ mulch layer

  • ☐ Have frost cloth ready

  • ☐ Plant spring bulbs as soils cool

Find compost, cool-season color, bulbs, grasses, lawn seed, frost cloth, and sturdy containers at Donaldson’s Greenhouse—plus friendly advice on timing and pairings. A thoughtful fall reset now means a fresher look through frost and a stronger, more colorful start next spring.

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