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Guaranteed to Grow
Easy to Grow
Heirloom

Sweet Mammoth Basil

Quick Facts:

  • Heirloom variety
  • Large, lettuce-like leaves
  • Sweet, pungent flavor
  • Great for caprese salad, Margherita pizza
  • Grows well in containers

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Quantity: Packet (250 Seeds)

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We ship to all areas of North America including the United States, its territories and outlying islands, and Canada. International orders may incur an additional charge to cover the handling of customs paperwork. Returns are accepted within 30 days of receipt. Full warranty information can be found here.

Sweet Mammoth Basil

More about Sweet Mammoth

Ocimum basilicum

Sweet Mammoth is an heirloom basil that produces large, lettuce-like leaves with a sweet, pungent flavor.  Its large leaf size makes Sweet Mammoth basil well-suited for making caprese salad as the leaves are large enough to cover the slice of a medium tomato.  It is also delicious in homemade pesto or on top of Margherita pizzas.  What's more, the large, crinkled leaves look beautiful in containers and are a lovely addition to any patio or landscape.  This easy-to-grow variety matures about 70 days after sowing.  Keep flowers pinched off for summer-long harvests.  Each packet contains a minimum of 250 seeds.

Ocimum basilicum

Sweet Mammoth is an heirloom basil that produces large, lettuce-like leaves with a sweet, pungent flavor.  Its large leaf size makes Sweet Mammoth basil well-suited for making caprese salad as the leaves are large enough to cover the slice of a medium tomato.  It is also delicious in homemade pesto or on top of Margherita pizzas.  What's more, the large, crinkled leaves look beautiful in containers and are a lovely addition to any patio or landscape.  This ... read more

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Ocimum basilicum

Sweet Mammoth is an heirloom basil that produces large, lettuce-like leaves with a sweet, pungent flavor.  Its large leaf size makes Sweet Mammoth basil well-suited for making caprese salad as the leaves are large enough to cover the slice of a medium tomato.  It is also delicious in homemade pesto or on top of Margherita pizzas.  What's more, the large, crinkled leaves look beautiful in containers and are a lovely addition to any patio or landscape.  This easy-to-grow variety matures about 70 days after sowing.  Keep flowers pinched off for summer-long harvests.  Each packet contains a minimum of 250 seeds.

Boy holding slice of watermelon
Kids eating watermelon

How to Grow Basil

Basil requires well-draining soil with a pH range of 6 to 7 and ample sunlight of at least 6 to 8 hours a day for optimal growth. The soil should be kept moist, but not waterlogged. Basil prefers warm temperatures and is susceptible to frost damage. Additionally, it is recommended to prune basil frequently to promote bushier growth and prevent it from bolting.

After danger of frost has passed, sow seeds 1" apart, 1/4" deep in rows 18-24" apart. Under ideal conditions, germination will occur in 5-10 days. After germination, thin to one plant every 4-8". Can also be started indoors 6-8 weeks before last frost.

Dig a hole slightly larger than the root ball of the basil plant and carefully remove the plant from its current container, taking care not to damage the roots. Place the plant in the hole, backfill with soil, and water thoroughly. Keep the soil moist and avoid overwatering, which can cause the roots to rot.

Insect Pests

Diseases & Other Problems

To harvest basil, use sharp scissors to cut off individual leaves or entire stems, leaving a few sets of leaves on the plant to encourage new growth. Harvest basil in the morning when the plant's oils are most concentrated. To store fresh basil, wrap the stems in a damp paper towel and place them in a plastic bag in the refrigerator, where they can last for up to a week. Alternatively, basil leaves can be frozen or dried for longer-term storage.

CONSIDERATIONS:

Basil is an inbreeding plant, however the flowers require insects for pollination and they are a favorite of honey bees and other types of bees. It is therefore necessary to isolate different varieties of basil by at least 150 feet to ensure varietal purity. Alternatively, two different varieties may be caged with netting, with one variety being exposed each alternating day to allow for pollination to occur.

HARVESTING SEED:

Basil racemes mature progressively from the bottom of the plant upwards. Once the pods on the bottom portion of the racemes have turned brown, cut the stem and allow the entire plant to dry in a well-ventilated place out of direct sunlight. Release the seeds by rubbing the dried racemes against a fine mesh. Strain and winnow the seeds and store in an airtight container.

SEED LONGETIVITY:

Basil seeds can remain viable for up to five years, although their germination rates may decline over time. The seeds should be stored in a cool, dry place in an airtight container to preserve their viability.

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