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Southern Seeds was founded in 2019 by Ryan and Kim Dorn and became Seed Therapy in 2025. The family business moved its operations to the Dallas, Texas, area in 2023. Drawing on generations of growing experience, the team focuses on dependable seeds, personal customer service, and helping gardeners succeed. Its work includes relationships with American farms and seed donations to schools and community gardens.
Cimmaron Romaine Lettuce (Lactuca sativa) - 200 Seeds
Description:
The Cimarron is a very beautifully colored romaine lettuce! This tasty lettuce has bright green-red leaves that fade to deep red tips. This romaine type lettuce has good disease and bolt resistance. Cimarron is a favorite among gardeners for its beautiful hue and crispy texture in salad mixes!
Growing Instructions (USDA Zones 3-9):
Lettuce is hardy and can be planted as early as the soil can be worked. It is a cool weather crop and grows best at temperatures of 60-65°F. Careful variety selection is important for hot weather plantings. Sow every 3 weeks for a continuous supply of fresh lettuce. Lettuce seed can enter thermal dormancy when exposed to high temperatures. Do not use a heat mat when germinating lettuce seed. Optimum germination results at soil temperatures of 60–65°F.
For direct seeding, seeds germinate at low soil temperatures (40°F), but poorly above 75°F. Sow seeds 2-3″ apart, rows 12–18″ apart. Cover seed lightly, about 1/8″, and firm soil gently. Thin to one plant every 10–12″. Dry soil must be watered to ensure coolness and moisture, and for uniform germination.
For transplanting, sow 2-3 seeds per cell, 1/4″ deep, 3-4 weeks before transplanting outdoors. Do not let soil above 70F while germinating so keep out of the sun and a cool, dark location. Harden seedlings by reducing water and temperature for 2–3 days before planting outdoors. Properly hardened transplants can survive temperatures as low as 20°F. Transplant to 10–12″ apart, in rows 18″ apart.
Watering: Water lettuce once to twice per week or every 4 days whenever rainfall is inadequate.
Explore more vegetable seeds and garden seeds and growing essentials at BuyAmerican.
Sold as seeds for planting. Select this packet by its variety, quantity, and growing requirements; it is not a live plant.
Country of origin: United States. The supplier identifies this product as American-grown.
Keep unused seeds dry and cool in a clearly labeled, closed container. Protect the packet from humidity and temperature swings, and retain the variety name and sowing notes for your next planting. Use the species-specific directions below when deciding whether to start indoors, sow directly, soak seeds, or provide a cold period. Germination and growth vary with seed handling and local growing conditions.
For general seed-starting and storage guidance, see University of Minnesota Extension’s seed-starting guide. Use the variety-specific packet directions for this product.
This product ships directly from Southern Seeds, now Seed Therapy. The supplier currently lists standard processing of 1–3 business days, increasing to approximately 3–5 business days during the busy late-December-through-April-or-May seed season. Processing is separate from carrier transit time. Its published standard shipping rate is $4.99 per order, with free standard shipping at a merchandise subtotal of $35 or more after discounts and before taxes. The options, offers, and final charges displayed at BuyAmerican checkout govern this order; purchases from other makers may ship separately. Carrier delivery dates are estimates. The supplier ships within the United States and may restrict certain seeds by destination.
For this product, Southern Seeds/Seed Therapy publishes a 60-day satisfaction guarantee, offering an eligible replacement or product-price refund for concerns reported within 60 days of delivery. Original shipping is generally excluded. Preference-based physical returns generally require customer-paid return shipping; supplier errors or damaged or defective items receive an appropriate resolution without an additional return-shipping charge. Contact BuyAmerican at hello@buyamerican.com with your order number, product name, and concern before mailing anything back. BuyAmerican’s standard return policy provides a 30-day request period for eligible unused items in original packaging. Ask BuyAmerican to coordinate any supplier guarantee request for your marketplace order.
Read the BuyAmerican return policy or contact BuyAmerican order support before a return.
Every product is sourced, crafted, and shipped from within the United States. No exceptions.

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