Squash

Whether you’re carving them into spooky faces or roasting them with a drizzle of maple syrup, squashes are the heavy lifters of the botanical world. They belong to the Cucurbitaceae family (cousins to melons and cucumbers) and are technically fruits, even though we treat them like vegetables in the kitchen.

They are generally categorized into two main groups based on when they are harvested:

  1. Summer Squash These are the "eat it now" varieties. They are harvested while the fruit is still immature and the skin is soft and edible.

Popular Types: Zucchini (courgette), Yellow Crookneck, and Pattypan.

Texture: Tender, moist, and slightly nutty.

Best For: Sautéing, grilling, or spiralizing into "zoodles."

  1. Winter Squash These are the "marathon runners" of the garden. They are harvested in the fall when the rind has hardened into a protective shell, allowing them to be stored for months.

Popular Types: Butternut, Spaghetti, Acorn, Kabocha, and the iconic Pumpkin.

Texture: Dense, starchy, and often quite sweet when cooked.

Best For: Roasting, mashing into soups, or filling into ravioli.

Why They’re Great Aside from being incredibly versatile, squashes are nutritional powerhouses. Most varieties are packed with Vitamin A (good for the eyes), Vitamin C, and Fiber.

Pro Tip: Don’t toss the seeds! Most squash seeds (especially from pumpkins and butternuts) can be seasoned and roasted for a crunchy, protein-packed snack

How To Grow

Growing squash is famously rewarding because the plants grow incredibly fast—sometimes you can almost see the vines moving! However, they are "hungry and thirsty" plants that need specific conditions to thrive.

Here is a step-by-step guide to growing your own:

  1. Timing & Starting Squash are frost-tender tropical plants. They hate the cold.

Direct Sowing: Wait until the soil is at least 15-20°C (60-70°F). In most temperate climates, this is late May or early June.

Starting Indoors: To get a head start, sow seeds 3–4 weeks before the last frost in large peat pots. Squash roots are sensitive, so using a pot you can plant directly into the ground helps avoid "transplant shock."

  1. Ideal Conditions Sun: They need full sun (at least 6–8 hours a day).

Soil: Rich, well-draining soil is a must. Mix in plenty of compost or aged manure before planting.

The "Mound" Method: Most gardeners plant squash in small hills (mounds). This improves drainage and keeps the soil warmer. Plant 2–3 seeds per mound, about 1 inch deep.

  1. Spacing (The Golden Rule) Squash plants are space hogs.

Summer Squash (Bush types): Space plants 2–3 feet apart.

Winter Squash (Vining types): These can crawl for 10–15 feet! Space mounds 5–8 feet apart, or provide a very sturdy trellis for them to climb.

  1. Care & Maintenance Watering: Water at the base of the plant, not the leaves. Wet leaves are a magnet for Powdery Mildew (that white "dust" you often see on squash). They need about 1 inch of water per week.

Feeding: Once flowers appear, use a high-potassium fertilizer (like tomato food) every 2 weeks to encourage fruit growth.

Pollination: Squash have separate male and female flowers on the same plant. If you don't see fruit forming, you might need to "hand pollinate" by taking a male flower and rubbing its pollen onto the center of the female flower (the one with the tiny baby squash at the base)

How/When To Harvesting

Harvesting squash is all about timing and the "fingernail test." Since summer and winter squashes have completely different goals—one for freshness, one for storage—the techniques vary significantly.

  1. Harvesting Summer Squash (Zucchini, Pattypan, Yellow) The goal here is frequent harvesting. The more you pick, the more the plant will produce. If you leave a zucchini on the vine too long, it turns into a "baseball bat" that tastes like woody cardboard and signals the plant to stop making new fruit.

Size Matters: Harvest zucchini and yellow squash when they are 6–8 inches long. Pattypan squash should be about 3–4 inches in diameter.

The Technique: Don’t just pull! The stems are brittle. Use a sharp knife or garden shears to cut the fruit from the vine, leaving about 1 inch of stem attached.

Frequency: Check your plants every day. In peak summer, a squash can double in size in 24 hours.

  1. Harvesting Winter Squash (Butternut, Acorn, Pumpkin) These require patience. You want them to reach full maturity on the vine so they develop a thick skin for winter storage.

The Look: The vine will begin to shrivel, turn brown, and look "dead." The color of the squash will become dull and deep (e.g., butternut turns from light green-streaked to a solid creamy tan).

The Fingernail Test: Press your thumbnail into the rind. If it's ready, the skin should be hard and your nail shouldn't leave a dent. If it punctures easily, it needs more time.

The Technique: Cut the squash from the vine with shears, leaving 2–3 inches of stem (the "handle"). Never carry a squash by its stem; if it breaks off, the squash will rot quickly.

The Deadline: You must harvest before the first hard frost. A light frost might kill the leaves, but a hard freeze will damage the fruit and ruin its storage life.

  1. The "Curing" Secret (Winter Squash Only) Unlike summer squash, which goes straight into the fridge, winter squash needs to "cure" to sweeten the flesh and toughen the skin further.

Sun Cure: Leave the harvested squash in a warm, sunny spot (75–85°F or 24–29°C) for 7–10 days. A sunny porch or a greenhouse is perfect.

Airflow: Make sure they aren't touching each other so air can circulate.

Storage: After curing, move them to a cool, dry, dark place (like a pantry or cellar). Do not refrigerate raw winter squash; the cold/humidity causes them to break down faster

  • Sow Depth: 3 cm
  • Spacing Between Rows: 90 cm
  • Spacing Along Row: 90 cm
  • Number plants per Square Foot: 0.5