Harvesting Rhubarb Seeds: Timing and Hybrid Caveats

When to Harvest

• Summer, after flower stalk elongates
• Seed pods turn papery, off-white to brown
• Before pods shatter and disperse seeds

Seed Processing and Storage

1. Collect entire seed heads
2. Dry further in paper bags (1-2 weeks)
3. Rub to separate seeds from chaff
4. Store in airtight jars, cool, dark, dry
5. Viability: 2-3 years

Critical Hybrid Warning

Most named rhubarb varieties ('Victoria', 'Canada Red', etc.) are hybrids or selected clones. Seedlings will NOT resemble the parent—variable stalk color, thickness, flavor, and oxalic acid content.

Better Propagation: Division

• Early spring or fall
• Divide crown into sections with 2-3 buds each
• Replant immediately at same depth
• True to variety, fruits in year 1
• Rejuvenates old plants

When Seeds Make Sense

• Breeding new varieties
• Species rhubarb (Rheum rhabarbarum)
• Educational projects
• No access to divisions