Seed Starting Indoors — Complete Guide
Starting seeds indoors gives you earlier harvests, access to more varieties, and complete control over the early season. These 30 guides cover every stage — from choosing when to sow and what compost to use, through to diagnosing problems, caring for seedlings, and getting plants safely into the ground.
Getting Started
- When should I start seeds indoors?
- What seeds should I sow indoors?
- What compost should I use for sowing seeds indoors?
- What containers and trays should I use for starting seeds indoors?
- How deep should I sow seeds indoors?
- Do I need a propagator for starting seeds indoors?
Germination Conditions
- What temperature do seeds need to germinate indoors?
- How much light do seedlings need when started indoors?
- What are the best grow lights for starting seeds indoors?
- How should I water seeds and seedlings indoors?
Common Problems
- My seeds are not germinating indoors — what is going wrong?
- Why are my seedlings collapsing at the base? How to stop damping off
- Why are my seedlings leggy? How to fix tall, spindly seedlings
- Why are my seedlings pale, yellow, or washed out?
- Why are my seeds taking so long to germinate indoors?
Seedling Care
- How do I prick out seedlings without killing them?
- When should I pot on my seedlings to a bigger pot?
- How do I harden off seedlings before planting them outside?
- When is it safe to transplant seedlings outside?
Specific Crops
- How do I start tomatoes indoors from seed?
- How do I start peppers indoors from seed?
- How do I start chillies indoors from seed?
- How do I start aubergines indoors from seed?
- How do I grow celery and celeriac indoors from seed?
- How do I start annual flowers indoors from seed?