GardenDill variety
Long Island Mammoth Dill
✓ In your garden
Long Island Mammoth is a mammoth dill, ready in about 60 days. Snip the feathery leaves (“dill weed”) fresh all season, and let some plants flower to harvest the seed heads for pickling. Dill grows fast from directly-sown seed, self-sows freely once it’s in the garden, and doesn’t like being transplanted.
“A feathery herb grown for both its leaves and its seed.”
Growing basics — shared by every dill
Long Island Mammoth grows like any other dill. The full picture — how deep to plant, spacing, feeding, pests, harvest — lives on the Dill page so it's maintained in one place.
- Sun
- Full Sun
- Spacing (in row)
- 3–12 in
- Row spacing
- 12–24 in
- Planting depth
- 0.25 in
- Soil pH
- 5.5–6.5
- Water
- Moderate
What is Long Island Mammoth good for?
- PicklingLeaves and seed heads both. Great
- Fresh (fish, potatoes)Snip the feathery leaves. Great
- SeedLet a few plants flower and set seed. Great
From how it grows — kitchens vary.
—
Want the full 10/50/90% odds + nearest stations? Open the frost tool →When to plant Long Island Mammoth in your zone
Zone 6bGreenhouse or cover on: your start slides ~4 weeks earlier and your harvest stretches ~3 weeks later (shown striped).
Planting seeds straight in the ground only works where the season's long and warm — most gardeners start seeds indoors or buy young plants, or you'd pick your first tomato right as frost hits.
Comfortable — first ripe fruit lands around early Jun, well before your typical frost (~late Oct).
- Plant seeds outside
- early Apr – mid Apr
- Growing
- mid Apr – early Jun
- Picking
- early Jun until frost (~late Oct)
Typical dates for zone 6b — set your zone or ZIP above for yours.
What to plant near Long Island Mammoth — and what to keep away
-
Cabbage familyTrialed
Dill flowers feed the tiny parasitoid wasps that hunt cabbage worms. Let some of it bloom near the bed.
-
CarrotsTraditional
Same family, same pests, and mature dill is said to stunt carrots. 'Said' is doing some work there — but why risk it.
The badge is the honesty. Trialed = a published field trial · Practical = a real mechanism · Traditional = companion-chart lore. These pairings hold for every dill.
Pairings compiled from University of Minnesota Extension, West Virginia University Extension.
Growing Long Island Mammoth — the things that trip people up
- Sow dill straight where it’s to grow — it has a taproot and resents transplanting. Sow a little every few weeks for a steady supply of leaves.
- Let a few plants “bolt” and flower if you want dill seed for pickling — and once dill flowers in your garden, it usually self-sows and comes back on its own.
Long Island Mammoth dill at a glance
| Type | Mammoth |
|---|---|
| Days to ripe | 60 days after you plant it outside |
Extra fields from seed-catalog listings and university growing guides. Days to ripe and disease resistance shift with your climate and seed source — double-check with your local extension office before you buy.
Save it and the plant lights up — kept right here in your browser, no account needed. It's the first thing GardenTrack starts remembering for you.
Kept on this device. Want it safe if your browser clears or you switch phones? Back it up free — just your email, no password.
GardenTrack is in beta now — it'll remember every plant you add here and tell you what to do and when. One email, no spam.
Common questions about Long Island Mammoth
How long does Long Island Mammoth take to grow?
About 60 days to start cutting leaves; let some plants flower a bit later for seed.
Can I start Long Island Mammoth indoors?
Better not — dill has a taproot and resents transplanting. Sow it directly where it’s to grow, and it’ll often self-sow for next year.
Browse more dill varieties →