Tomato Seeds,
Grandma Oliver's Green

Start seeds indoors 6-8 weeks before the last expected frost date. Transplant seedlings outdoors after the danger of frost has passed. Under ideal conditions, Grandma Oliver's green tomatoes typically mature in about 75 days from transplanting. If you’re not sure how to find your first and last frost dates, consult our blog post "Our Experts Answer Questions, Share Resources."

Sow seeds 1/8 inch deep. They germinate best in a temperature between 70-80 F. Once seedlings develop their first true leaves, transplant them into larger containers. Before moving them outdoors, harden off the seedlings by gradually exposing them to outdoor conditions over a week. Plant seedlings 24 inches apart in the garden to give them enough space for growth and air circulation.

Apply a balanced fertilizer at planting and side-dress during the growing season as needed. Mulching around the base of the plants helps retain soil moisture and suppress weeds. Regularly monitor for common tomato pests and diseases, employing organic controls when necessary. Harvest fruits when they develop an amber hue and feel slightly soft to the touch.

• Most tomatoes are self-pollinating and don't frequently cross; in a garden setting, separating by 25 feet should prevent 99% of cross-pollination. Or you can bag and hand pollinate for 100% purity.
• On a small scale, seeds may be scooped from the fruits and dried on a paper towel.
• For larger quantities or cleaner seeds, fermentation for a few days is recommended.
• Once dry, tomato seed can be stored in a cool, dry, dark place; good seed retains viability for 5 years or more.