When should I plant Rhubarb in Zone 8a?

Start Rhubarb seeds indoors around Jan 25. Transplant outdoors after Mar 8. Expect first harvest around Mar 8.

What is the last frost date for Zone 8a?

The average last spring frost date for Zone 8a is Apr 5. The first fall frost averages Oct 28, giving a 206-day growing season.

Can I grow Rhubarb in Zone 8a?

Yes. Rhubarb needs 90 days to harvest. Zone 8a has a 206-day growing season, which is sufficient.

Growing Rhubarb in Zone 8a

Zone 8a has warm winters and an extended growing season -- excellent for heat-loving crops like Rhubarb. Darrera gelada: Apr 5. Primera gelada: Oct 28.

Planting Calendar

Indoor

Outdoor

Harvest

Jan 25Oct 28

Season: Apr 5 – Oct 28 (206 dies)

Zona8a

Darrera geladaApr 5

Primera geladaOct 28

Temporada206 dies

Collita90 dies

SolSol Ple

When to Plant Rhubarb in Zone 8a

Start Seeds Indoors: Jan 25

Start Rhubarb seeds indoors around Jan 25 (10 setmanes abans de l’última gelada). Optimal germination temperature: 65F. Germinates in 7-21 days.

Transplant Outdoors: Mar 8

Transplant Rhubarb seedlings outdoors after Mar 8. Wait until soil temperature reaches 40F. Space plants at 1/m² (30cm espaiat). Harden off plants for a week before moving outside.

Harvest: Mar 8

First harvest approximately Mar 8 (~365 dies from transplant). Continue harvesting until first frost (Oct 28). Rhubarb can overwinter in mild climates for continued harvest.

Rhubarb in Other Zones

1a 1b 2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b 12a 12b 13a 13b

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