Rhubarb
Rheum rhabarbarum · Polygonaceae
A handsome, long-lived perennial grown for its tart crimson stalks — but never the leaves, which are toxic. Plant once and harvest each spring for years to come.
At a glance
Good for
- Edible / Productive
- Toxic to Pets
Sowing from seed
- Difficulty: intermediate
- Sowing depth: 15 mm
- Method: Raise in trays and transplant
- Pre-treatment: Soak seed before sowing
- Germination: 14-28 days
- Days to harvest: 365-730 days
- Best sown in: spring, autumn
- Seed storage life: 2 years