Fall · September 8, 2026

City of Moncton, New Brunswick

Acadian Forest & Atlantic Coast·Hardiness zone 5b

Now

12°C · Clear

Today

16° / 9°

Soil 6 cm

14°C

First frost

~43 days (Oct 21)

Gardening in City of Moncton

AI field guide · refreshed weekly

Moncton Gardening: September 8–14 – Harvest Season Peaks, Plant Spring Bulbs

Zone 5b means your first fall frost arrives around October 21—you have 43 days left to harvest tender crops and get spring bulbs in the ground. Soil at 14°C is cool enough for bulb planting but still warm enough for late-season growth. Frost-free days are nearly exhausted; focus on finishing rather than starting.

Sow outdoors now

  • Garlic (hardneck varieties)

    Plant cloves 5 cm (2 in) deep, 15 cm (6 in) apart, in well-draining soil. Moncton's cold winters suit varieties like German Extra Hardy or Chesnok Red; they'll overwinter and emerge in spring.

  • Spring bulbs: tulips, daffodils, crocuses

    Soil temperature at 14°C is ideal for planting. Bury tulips 15 cm (6 in) deep, daffodils 20 cm (8 in), crocuses 8 cm (3 in). They need cold dormancy to bloom in May.

  • Spinach and arugula (quick-maturing varieties)

    Sow 'Space' spinach or 'Roquette' arugula now for a 4–5 week harvest before frost; both tolerate light frosts and mature fast in cool soil.

  • Mâche (corn salad)

    Direct-sow 1 cm (0.4 in) deep; this cold-hardy green thrives in fall and can overwinter under mulch for early spring picking.

  • Radishes (winter storage varieties)

    Sow 'Watermelon' or 'Daikon' radishes now; they'll mature in 50–60 days and store well in cool conditions through winter.

Start indoors now

  • Microgreens (broccoli, radish, mustard)

    Start indoors on a sunny windowsill for harvest in 10–14 days; extend your fresh greens through fall and early winter.

  • Garlic sprouts

    Pot up a few extra garlic cloves in soil indoors for tender, harvestable shoots in 3–4 weeks—a bonus crop before bulbs go dormant.

Harvest now

  • Tomatoes (all remaining fruit)

    Pick all green and mature fruit before the first frost (Oct 21). Ripen indoors on a windowsill or wrap in newspaper in a cool room.

  • Peppers and eggplants

    Harvest all mature fruit now; plants will slow dramatically as nights cool. Leave immature fruit to ripen indoors if desired.

  • Beans, peas, and squash

    Pick beans and peas regularly to encourage final flushes; harvest winter squash and pumpkins before frost blackens vines.

  • Carrots, beets, and root crops

    Dig now or leave in ground under heavy mulch for storage harvest through October; cold sweetens roots.

Tasks this week

  • Plant garlic cloves and spring bulbs before soil cools further.
  • Mulch beds heavily (10 cm / 4 in) to extend harvest and protect overwintering crops.
  • Cut back perennials and deadhead spent flowers to tidy beds and reduce pest overwintering sites.
  • Drain and store garden hoses; shut off outdoor water if frost threatens.
  • Sow cover crops (winter rye, hairy vetch) on empty beds to prevent erosion and build spring soil.

Watch out for

  • Early frost: Temperatures could dip to 0°C (32°F) by late September; keep frost cloth handy for tender crops.
  • Wet soil: Rain forecast for Sept 10 and 14 may waterlog beds; ensure drainage around bulb plantings.
  • Slugs and snails: Cool, damp conditions favour them; hand-pick or use beer traps around young seedlings and newly planted bulbs.

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