When to Plant Butternut Squash in the UK

Butternut squash grows best in warm conditions, so planting usually happens later in spring once soil temperatures rise. Planting at the right time helps seeds germinate quickly and plants grow strongly through summer.

Butternut squash is usually grown from seed started indoors or planted outside once frost risk has passed.

Starting butternut squash seeds

Butternut squash seeds are often started indoors in April.

Seeds grow quickly in warm conditions.

Young plants are usually ready to move outside after a few weeks.

Planting butternut squash outdoors

Butternut squash is usually planted outside in May or early June, once soil becomes warmer and frost risk has passed.

Sunny, sheltered locations usually produce the best results.

Plants need space to spread as they grow.

Growing butternut squash in containers

Butternut squash can be planted in large containers filled with compost.

For container advice, see growing butternut squash in containers.

Planning the butternut squash growing season

Butternut squash planted in late spring is usually harvested in autumn.

Warm weather helps fruits develop properly.

For growing advice, see how to grow butternut squash in the UK.