How long does it take to grow an avocado from a seed?
Written by
Paul Reynolds
Reviewed by
Prof. Samuel Fitzgerald, Ph.D.Projects involving the growth of avocado seeds combine patience and science. Roots emerge a few weeks after planting seeds, but fruiting will take 8-15 years for trees grown from seeds. Grafted trees cut that time to about 3-4 years. I have tended to both seedling and grafted avocado trees; seedlings offer the pride of creation, while grafted varieties show edible results and speedier gratification.
Germination Phase
- Seeds crack open within 2-6 weeks in 70°F (21°C) environments
- Paper towel method accelerates root development vs. soil planting
- Healthy roots appear creamy white, not brown or slimy
Sapling Development
- First true leaves emerge 8-12 weeks after potting
- Monthly 10-10-10 fertilizer strengthens stems
- Rotate plants weekly to prevent lopsided growth
Pruning Strategy
- Trim top leaves at 12" height to encourage branching
- Sterilize shears with isopropyl alcohol between cuts
- Remove crossing branches to prevent disease entry points
Fertilization Plan
- Spring/Summer: Balanced 10-10-10 formula monthly
- Fall/Winter: Half-strength solution every 8 weeks
- Add crushed eggshells quarterly for calcium boost
To successfully manage pests you need to stay alert. I check under the leaves for spider mites every week. When I see webbing, I just use neem oil. Only when I discover scale insects, do I use cotton swabs with 70% alcohol and dab at the affected areas. I quarantine all new plants for 2 weeks before adding them to my collection.
Read the full article: How to Grow Avocado Seed Successfully Every Time
