Marrow

Marrows in Upper Carloway

Cucurbita pepo

A tender summer squash grown outdoors in rich, moisture-retentive soil once frost risk has passed. Start indoors for the best crop in the UK, then plant out into a sunny, sheltered spot and keep the plants well watered and fed through summer.

Height60cm
SunlightFull Sun
WaterHigh Water

Growing Guide

Step-by-step instructions for growing Marrow

Planting Calendar

Seed IndoorLater
J
F
M
A
M
J
J
A
S
O
N
D
TransplantLater
J
F
M
A
M
J
J
A
S
O
N
D
FertiliseNow
J
F
M
A
M
J
J
A
S
O
N
D
HarvestNow
J
F
M
A
M
J
J
A
S
O
N
D
MaintenanceNow
J
F
M
A
M
J
J
A
S
O
N
D
  1. Sow Seeds Indoors

    3 Apr – 10 Apr

    Sow seeds on their edge around 3rd April - 10th April in small pots of warm seed compost. Keep them at and do not sow too early, because marrow seedlings grow fast and can suffer if they become root-bound.

  2. Pot On Seedlings

    20 Apr – 4 May

    When the first true leaves appear, prick out or move each seedling into a larger pot at 20th April - 4th May. Handle them gently and keep the compost just moist, not wet.

  3. Harden Off Plants

    10 Apr – 24 Apr

    From 10th April - 24th April, move the plants outside for short periods each day so they adjust to wind, cooler nights and direct sun. Keep them under fleece or in a cold frame at night if conditions are still unsettled.

  4. Plant Out

    8 May – 15 May

    Set plants out at 8th May - 15th May once frost risk has passed and the soil is warm. Plant into rich, well-watered mounds or pockets, then water in thoroughly without wetting the stem.

  5. Support and Train

    25 May – 10 Jul

    From 25th May - 10th July, keep the plants centred on their mound and tuck the stems back if they stray. In a small garden, use a short frame or straw to keep fruit off damp soil and reduce rot.

  6. Feed and Water

    10 Jun – 13 Nov
    every 2 weeks

    From 10th June - 13th November, water deeply around the plant rather than over the leaves, and feed every 14 days once the first fruits set. Keep the compost or soil evenly moist so the fruit fills properly and avoids bitterness.

  7. Harvest Fruits

    25 Jun – 13 Nov

    Pick fruits from 25th June while they are still young and tender, then keep harvesting regularly until 13th November. Cut them with a knife or secateurs so you do not damage the stem, and check plants every few days for fruits that are ready.

Companion Plants

Tap a plant to see why it works (or doesn't) with Marrow.

Good companions

Plants to avoid

Why companion planting matters

Companion planting can deter pests, improve pollination, and make better use of space. Some plants confuse pests or attract beneficial insects; others improve soil or offer shade to neighbours that need it.

Suggested Varieties

Popular varieties of Marrow to consider

Bush Baby

Compact bush marrow with small, tender fruits, useful where space is limited.

Tiger Cross

A reliable UK-grown type with good vigour and pale-striped fruits.

Eight Ball

Round-fruited type that crops well as a baby marrow when picked small.

Also in nearby towns

See how Marrow timing shifts in other towns with different frost dates.