Very robust and frost-hardy – perennial plant.
Rhubarb (also known as Rhabarber) belongs to the Vegetables category and is suitable for outdoor planting from Early Spring onwards.
Use the Growing Temperature Sum (GTS) as a guide: Rhubarb can be safely transplanted once the local GTS has passed the threshold for Early Spring and no frost is expected. GrowPilot.guide calculates the current GTS for your location automatically.
🗓️ Tip: Always check the 10-day weather forecast before planting outdoors. The GTS is a helpful guide but does not replace a frost check for your specific area.
Rhubarb is very frost-hardy and survives even hard freezes. Can be planted in late winter or very early spring. Minimum night temperature: -5°C (ideal, not a strict requirement).
Rhubarb grows best at daytime temperatures between 8°C and 22°C. Night temperatures should not fall below -5°C.
Rhubarb is relatively robust against mold and tolerates wetter conditions well. Still, always avoid waterlogging.
Rain sensitivity: Low – Relatively rain-tolerant – good drainage is sufficient.
GrowPilot.guide calculates the current Growing Temperature Sum (GTS) for your location, shows the phenological season and gives you a daily personalised analysis – including frost warnings, mold risk and optimal planting time for Rhubarb.
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