Buttercrunch Lettuce Seeds
Buttercrunch is widely regarded as one of the finest lettuces ever developed — an All-America Selections winner in 1963 that still sets the benchmark for flavour and texture more than sixty years on. It forms a loose, open butterhead rosette with soft, lightly cupped outer leaves and a pale, creamy heart that delivers the buttery, melt-in-the-mouth texture the name promises. The flavour is mild, sweet, and never bitter — even in the warmer conditions that would turn other lettuces sharp.
Unlike crisphead types that form tight, dense heads over a full season, Buttercrunch keeps a relaxed, open structure you can harvest leaf by leaf long before the head matures. That makes it as practical as it is rewarding: you’re picking leaves from about 40 days on, and taking the full head at 55–65 days if you choose.
🌍 Where Buttercrunch Lettuce Grows Best
🇺🇸 United States
A spring and fall crop through zones 3–8, and a winter grower in zones 9–11. Sow early spring and again in late summer across most of the country; in the Deep South and Southwest it’s a cool-season winter lettuce. Its above-average heat tolerance for a butterhead buys extra weeks before summer bolting.
🇨🇦 Canada
One of the best lettuces for a northern spring — excellent in zones 3–9, germinating in cool soil and shrugging off light frost. Direct sow as soon as the ground is workable from the Maritimes to BC, then again in mid-August; the fall crop is exceptionally sweet and tender.
🌱 Buttercrunch Lettuce at a Glance
Sow seeds
Surface to 3 mm (⅛ in); light aids germination
Germination
5–7 days at 10–18°C (50–65°F)
Frost tolerance
To about -2°C (28°F)
Spacing
20–25 cm (8–10 in) apart
First cut
~40 days; full head 55–65
Light
Full sun; part shade in heat
How to Grow Buttercrunch Lettuce Seeds
Buttercrunch lettuce seeds germinate reliably in soil as cool as 4°C (40°F), which makes them one of the first things you can plant each spring. Direct sow as soon as the ground is workable, 4–6 weeks before your last frost. The seed needs light to sprout, so surface-sow or press it no deeper than 3 mm (⅛ in), and expect germination in 5–7 days. Thin seedlings to 20–25 cm (8–10 in) apart once they reach 5–8 cm, or start seed indoors under lights 3–4 weeks before transplanting for larger, more established plants.
For a continuous supply, sow a fresh small batch every two to three weeks from early spring into early summer, then resume in mid-to-late August for fall. The fall succession is worth prioritizing — cooler temperatures ease bolting pressure and fall Buttercrunch runs especially sweet. Keep the soil evenly moist and water at the base rather than overhead, feed lightly every three to four weeks, and give afternoon shade as heat climbs; a row cover or cold frame carries fall plants weeks past the first frost.
🥬 Butterhead vs Loose-Leaf vs Romaine vs Iceberg
Buttercrunch (butterhead)
Buttery, tender, sweet, creamy heart · 55–65 days · fresh salads, wedge, wraps.
Salad Bowl (loose-leaf)
Mild, slightly crisp, ruffled · 45–50 days · mixed salads and garnish.
Romaine
Crisp, sturdy, slightly bitter · 70–80 days · Caesar salad, grilling, tacos.
Iceberg (crisphead)
Crunchy, very mild, watery · 80–90 days · wedge salad, burgers, slaws.
Harvesting & Storing Buttercrunch Lettuce
Begin picking outer leaves once plants reach 10–15 cm (4–6 in) across, typically 40–45 days from sowing. For the classic butterhead experience, wait until a loose head forms at 55–65 days, then cut the whole plant at the base — the creamy, blanched inner leaves are the prize, more tender and buttery than the outer ones. Harvest in the cool of the morning for the best texture and chill the leaves promptly.
Store whole heads unwashed in the crisper, where they keep up to 10 days, or rinse and spin loose leaves and hold them loosely wrapped in a towel inside a sealed bag for 5–7 days. Keep lettuce away from apples and bananas, whose ethylene gas speeds browning. If a heat wave threatens to push plants into bolting, harvest everything at once before the leaves turn bitter.
Using Buttercrunch Lettuce in the Kitchen
Buttercrunch is the lettuce to reach for when texture matters. The silky, cupped leaves make natural cups for lettuce wraps and tacos, holding a filling without cracking the way a crisphead leaf does, and the sweet, tender heart needs nothing more than a light vinaigrette to shine in a simple salad.
Because the flavour is so mild, Buttercrunch pairs beautifully with rich or sharp partners — creamy dressings, blue cheese, toasted nuts, or citrus. Use the whole loose head as the base of a composed salad, or layer the soft leaves into a gourmet sandwich where a sturdier lettuce would feel stiff. It’s best raw; the delicate leaves collapse under heat.
Saving Buttercrunch Lettuce Seeds
Buttercrunch lettuce seeds are straightforward to save because this is an open-pollinated, largely self-pollinating variety that comes true to type. Let a few plants bolt and flower fully; the small, yellow, daisy-like flowers ripen seed over one to two weeks. Cut the seed heads into a paper bag before they fully shatter, dry them indoors for another week, then shake to separate seed from chaff.
Lettuce flowers self-fertilize before fully opening, so cross-pollination is rare and growing several varieties together generally doesn’t affect seed purity — a 1–2 m (3–6 ft) buffer between flowering plants is a sensible precaution if purity matters. Store the cleaned seed cool, dry, and airtight, where it stays viable 2–3 years, and run a quick germination test on ten seeds before committing a full spring planting to saved stock.
❓ Buttercrunch Lettuce FAQ
What makes Buttercrunch lettuce different from other varieties?
Buttercrunch is a butterhead lettuce that forms a loose, open rosette with a tender, creamy-yellow heart. What sets it apart is the mix of silky texture, exceptionally mild and sweet flavour, and good heat tolerance for a butterhead — it won an All-America Selections award in 1963 and still sets the standard for home-garden lettuce.
How long does Buttercrunch lettuce take to grow?
Buttercrunch lettuce takes 55–65 days from sowing to a full mature head, though outer leaves can be picked from 40–45 days. Seed germinates in 5–7 days in cool soil; the ideal germination temperature is 10–18°C (50–65°F), and very cold or hot soil slows it down.
Can Buttercrunch lettuce handle frost?
Buttercrunch lettuce tolerates light frost down to about -2°C (28°F) without damage, making it one of the first crops to sow in spring and one of the last to harvest in fall. A cold frame or row cover extends that hardiness further, keeping harvests going into late fall in zone 5 and warmer.
Why is my Buttercrunch lettuce bitter?
Bitterness in Buttercrunch almost always signals bolting — the plant shifts toward seed production in response to heat or long days, and bitter latex builds up in the leaves. Grow it in cool weather, give afternoon shade in late spring, and harvest before it fully matures; once a central stalk rises from the centre, cut the plant right away and sow a fresh succession.
When should I plant Buttercrunch lettuce?
Sow Buttercrunch lettuce as early as the ground can be worked, 4–6 weeks before your last frost — late February to March in the mild US South and coastal BC, and late March to mid-April across the northern US and southern Canada. For a fall crop, sow about eight weeks before your first expected fall frost, usually mid-to-late August.
Is Buttercrunch lettuce good for containers?
Buttercrunch lettuce is an excellent container crop — its shallow roots suit pots, planters, and window boxes at least 20 cm (8 in) deep. Use a quality potting mix, water consistently since containers dry faster than beds, and you can grow three or four plants in a 30 cm (12 in) pot for continuous picking through spring and fall.
Can I grow Buttercrunch lettuce indoors in winter?
Buttercrunch lettuce grows well indoors under a full-spectrum LED light running 14–16 hours a day, in shallow, well-draining containers of quality potting mix kept evenly moist. Lettuce doesn’t need very high light intensity, which makes it one of the more practical winter crops for growing fresh salad greens between outdoor seasons.
Is Buttercrunch lettuce healthy?
Buttercrunch lettuce is a good source of vitamin K, folate, vitamin A, vitamin C, and potassium, very low in calories and high in water. The creamy inner leaves share the same nutrition as the outer ones, so the whole plant is worth eating, and garden-fresh lettuce keeps far more of its nutrients than store-bought heads shipped over several days.
What pests attack Buttercrunch lettuce?
Slugs and aphids are the main pests on Buttercrunch lettuce. Slugs feed at night and leave ragged holes — ring plants with diatomaceous earth or use organic slug bait. Aphids cluster under the leaves; knock them off with a firm spray of water or apply insecticidal soap. A floating row cover keeps aphids, caterpillars, and flying pests off entirely.
How do I store harvested Buttercrunch lettuce?
Rinse Buttercrunch leaves in cold water and spin them dry, then store loosely wrapped in a clean towel inside a sealed bag in the fridge, where they stay crisp 5–7 days; whole unwashed heads keep up to 10 days in the crisper. Harvest in the morning for the best texture, and never store lettuce next to apples or bananas, whose ethylene gas speeds browning.
Silky, Buttery Perfection from the Garden
The 1963 award-winning heirloom butterhead — sweet, creamy hearts from spring through fall.
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