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2024 Seed Catalog

Cardinale summer crisp lettuce



Summer Crisp / Batavian Lettuce Seeds

(OP) 49 days

Organically grown. Cardinale’s crisp, succulent, rich-tasting red and green leaves are extremely heat resistant; excellent for baby leaf or full size head production. Cardinale has been recently improved to produce denser, more enclosed heads. Leaves turn brilliant purple-red if planted in full sun when nights are cool. Master Gardeners of Santa Clara County, CA trialed 13 red lettuce varieties; Cardinale Summer Crisp lettuce placed first.

100 seeds - $3.49
View all of our Lettuce varieties.

Growing Car­dinale Summer Crisp / Batavian Lettuce Seeds

Bee introduces how to plant

Planting summer crisp lettuce: Sow seed in cell packs or flats, press into soil and cover lightly. Kept at 65°F., germination averages 7-14 days. Can direct sow into prepared seed beds 1 in. apart in rows 12-18 in. apart. Thin to 12 in. apart.

Harvesting summer crisp lettuce: Pick leaves at baby size, or allow plants to head. Summer Crisp lettuce can be harvested by removing a few of the outer leaves of the head; the plants will continue to grow and produce. Or alternatively, harvest entire large, gorgeous head at once. Leaves are thick, juicy, and flavorful. Summer Crisp lettuces are extraordinarily heat tolerant.

Shipping Information

U.S. Shipping Rates

Free shipping on U.S. orders over $60.00.
Free priority shipping on U.S. orders over $150.00.

Standard U.S. shipping is $5.99.
Priority U.S. shipping is $9.99.

International Shipping Rates

Shipping to Canada is $13.99.
International shipping to all other countries is $15.99.

Satisfaction Guarantee

We guarantee all the seeds we sell for one full year from the date of purchase. If you are unsatisfied with any seeds purchased from Swallowtail Garden Seeds, we will issue a refund. For customers in the U.S., we can send one-time replacements or issue a refund.