Mammoth Long Island Dill Seeds


Mammoth Long Island dill is a fast-growing annual with fern-like leaves that are sought-after for their strong, delicious aroma. Mammoth Long Island grows so tall in the garden (up to 2 m), that you could make it a central point of attention.

Compared to Bouquet dill, the main differences are that Mammoth Long Island is larger and better-suited for pickling, while Bouquet is more compact and mostly cultivated for seed production. Mammoth Long Island dill leaves, fresh or dried, are excellent for flavouring fish dishes and soups.


- Latin Name: Anethum graveolens
- Life Cycle: Biennal, usually grown as an annual
- Canada Hardiness Zone: 4-9
- Days to Maturity: 75
- Planting Depth: 5 mm
- Plant Spacing: 20-30 cm
- Growth Habit: 1-1.5m tall


The recognizable aroma of dill wafts through the air upon any contact with its flowing fronds. The slight, green leaves are an excellent accompaniment to summer salads and essential for big batches of pickles.

Dill doesn’t transplant well due to its deep taproot. For that reason, it should be sown directly into the garden after the danger of frost has passed. Germination should occur within a week or two if the soil temperature is 15 degrees or above. Select a site that has rich, well-drained soil, receives full sun and will be sheltered from strong winds.

Plant plenty of seed at a depth of 5 mm and gently water in, being sure to keep the soil damp throughout the germination and seedling phase. A couple weeks after germination, thin plants to 30 cm apart. Every few weeks, seed a new round of dill in order to have a constant supply of the fresh green herb.

When the plants have five or six leaves they can be harvested, starting first with the oldest leaves. To save time and effort for next season, make sure some plants are left to go to seed. Seeds will drop, scatter and sprout the following spring. 


- Dill is a member of the celery family and was first cultivated thousands of years ago by the Egyptians.

- Dill seeds will remain viable for 3 years if stored in a cool, dark place, ideally between 4 and 10⁰C. After that, the germination rate may start to go down.


You know that a lush, fruitful garden needs good soil, frequent watering, and sunlight to grow, but it’s the seeds that really make the harvest.

Picked and bagged for 2024 the vast majority of our seeds have germination rates of over 85%. The seeds are all-natural, non-GMO, non-hybrid, untreated, and open-pollinated for seed saving.

We have put a lot of thoughts into the design and packaging of our seed packets. Our seeds are all carefully packed in food grade kraft paper/aluminium zipper lock bags, and then are shipped in eco-friendly padded mailers.

We heat-seal each of our seed packet for even more protection from moisture, odour and light, allowing you to store your seeds for up to 3x longer than paper or plastic. Plant them all, germinate some indoors, save some for next season - it’s up to you!

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Filter Reviews:
Diane P.
Canada Canada

Arrived quickly but won't know if it grows...

Arrived quickly but won't know if it grows till next spring.

Blueberry K.
Canada Canada

Very well packed. Can't wait to plant thes...

Very well packed. Can't wait to plant these seeds and see them grow. Outstanding customer service. Recommend & will order again.

Rachel S.
Canada Canada

Good quality product and arrived on time....

Good quality product and arrived on time. very happy with my purchase

Nadia L.

nice packaging and fast processing times

nice packaging and fast processing times


Dec 2021. I ordered these seeds for next y...

Dec 2021. I ordered these seeds for next year's garden. Can't say yet if the germination rate is good or if the variety produces vegetables I like.