May 20, 2026•1 min read
Indoor Seed Starting Under Lights: The Complete Step-by-Step Guide
Avoid leggy seedlings with our temperature, moisture, lighting distance, and bottom-watering germination protocol.
Johny AlexRead
Topic Hub & Pillar Guide
Seeds, Sowing & Seasonal Calendars: Planting at the Perfect Time
Timing is everything in the vegetable patch. Sowing too early in cold, waterlogged soil leads to rotting seeds and stunted growth; sowing too late risks crop failure in midsummer heat. Learn how to map your planting dates around your local last frost.
Key Takeaways & Core Rules
- Locate your average last spring frost date and count backwards for indoor starts.
- Direct sow large seeds (beans, squash, corn) and root crops (carrots, radishes).
- Start nightshades and brassicas indoors 6 to 8 weeks before outdoor transplanting.
- Always harden off tender indoor seedlings over 7 to 10 days before planting out.
Core Learning Modules
Planning
Calculating Your Frost Dates
How to look up your microclimate historical data and track soil temperatures.
Indoor Starts
Indoor Seed Starting Essentials
Grow lights, sterile seed mixes, heat mats, and bottom-watering.
Calendar
Succession Sowing Secrets
Staggering plantings every 14 days to avoid overwhelming one-time gluts.
Category Library
3 GuidesAll Guides in Seeds, Sowing & Planting Calendar
February 22, 2026•1 min read
The Seed Viability Water Test: Are Your Old Seed Packets Still Good?
Found a stash of seeds from three years ago? Do not waste weeks waiting in garden beds. Use this damp paper towel test to check germination rates in 5 days.
Johny AlexRead
February 16, 2026•1 min read
Indoor Seed Starting: How to Grow Healthy, Stocky Seedlings (No Leggy Stems)
Tired of weak, pale seedlings falling over? Learn the exact light distance, heat mat timing, and fan breeze trick that produces stout, garden-ready plants.
Johny AlexRead
Seeds, Sowing & Planting Calendar FAQs
What does "hardening off" seedlings mean?
Seedlings grown indoors have never felt wind or UV rays. Hardening off is the gradual process of introducing them to outdoors (1 hour of shade on day 1, up to full sun and wind by day 7) so their leaf cuticle thickens.