Myths About Growing Pumpkins in Scotland

“Winter squash and pumpkins are ready to harvest once they've grown to a good size”

Ripeness is tested by colour and sound, not size: fully coloured skin, and a hollow sound when tapped. A winter squash or pumpkin can reach full size well before its skin has hardened enough to store.

Our read Size is the obvious, visible signal, so it's the one most people check first. Storage life depends on skin hardness and full colour developing, which happen after the fruit stops getting noticeably bigger, not alongside it.

What to do: Judge readiness by colour and the tap test, not size, and leave the fruit on the plant as long as the season allows for the skin to fully harden before the first frost.

“Cutting winter squash or pumpkins close to the fruit gives a neater result”

RHS specifies leaving at least 10cm of stem attached on both its squash and pumpkin pages independently, and Garden Organic's combined guide agrees: cutting too close leaves a soft area on the fruit that's prone to rotting in storage.

Our read A short, tidy stem looks like better workmanship, the way a close, clean cut usually is elsewhere in the garden. Winter squash and pumpkins punish exactly that instinct: the stem is protecting the one point the fruit can't seal itself.

What to do: Leave a generous stem, at least 10cm, when cutting winter squash or pumpkins for storage, even if it looks untidier than trimming close.

“Pumpkins are a completely different plant from squash, just marketed differently”

Pumpkins are a type of winter squash, not a separate plant. RHS still maintains two separate grow-your-own guides for them, because the practical concerns genuinely differ: pumpkins get a giant-fruit growing technique and no AGM varieties at all, while squash gets a summer/winter split and six AGM picks.

Our read Different names, different shapes, and a Halloween-specific reputation all make pumpkins feel like their own category. Botanically they're not: RHS still treats them as separate pages because growers reach for them with different goals, not because they're different plants.

What to do: Treat pumpkin and squash growing advice as interchangeable wherever it doesn't specifically depend on fruit size or storage use, and expect pumpkin-specific guidance to focus on carving suitability and giant-growing technique that a general squash page won't cover.

“Any pumpkin variety will do fine in a Scottish garden's shorter growing season”

Several varieties are named explicitly for their large or giant fruit size (Hundredweight, Atlantic Giant), which need a long, hot growing season to mature fully. Others, such as Jack be Little, are palm-sized and named with no such requirement.

Our read A pumpkin picture on a seed packet doesn't advertise how much season it needs behind it. The size a variety is bred for is really a proxy for how much heat and time it demands, and that's exactly the information a Scottish grower needs before choosing.

What to do: Choose a compact or small-fruited variety for a realistic Scottish harvest, and treat giant varieties as a genuine gamble that needs the warmest, most sheltered spot available and a longer season than most gardens here reliably get.

“Leaving every pumpkin fruit on the vine gives you the biggest total harvest”

The giant-pumpkin technique does the opposite: limit fruit to just two or three per plant, and for the largest pumpkins just one, removing any further flowers or fruit that start to form, so the plant's energy concentrates into the fruit that remain.

Our read More fruit sounds like more harvest, which is true for plenty of vegetables but not for a plant with a fixed energy budget split between however many fruits it's carrying. Fewer fruit, not more, is how you get the biggest ones.

What to do: If size matters more than total number, remove all but one to three fruits per plant as they start to form, and keep removing new flowers so the plant's energy goes into the fruit you've kept.

“Winter squash and pumpkins can go straight into storage off the vine, no curing needed”

Standard advice is to cure squash and pumpkins before storing them, not store them straight off the plant.

What to do: After harvest, lay pumpkins and winter squash out in the sun (or a greenhouse/coldframe) for a week to 10 days to harden and cure the skins before moving them into cool storage.