How to grow rhubarb
Frost-hardy · Knotweed family
When to sow and plant
No sourced time window
Based on: average for Germany, last frost 19 April, safe from 6 May
Planting calendar for your areaWhere the dates come from
The weeks come from our sources; the dates use the average frost in Germany. Enter a German postcode to get dates for your area.
We don’t have a sourced value for this yet.
Good and bad neighbours
We don’t know any sourced neighbours for this plant yet.
Crop rotation
Perennial: it stays in the same spot for several years and is not part of the yearly rotation.
At a glance
- Family
- Knotweed family (Polygonaceae)
- Frost
- Hardy, tolerates frost
- Spacing (row × plant)
- 122 × 91 cm (48 × 36 in)
- Plants per m²
- 0.9
- Life cycle
- Perennial
Spacing according to USU Extension: How to Grow Rhubarb in Your Garden. Other sources: – × 75–90 cm (– × 30–35 in) (RHS: How to grow rhubarb).
Questions and answers
How far apart should I plant rhubarb?
122 × 91 cm (48 × 36 in) (row × plant), according to USU Extension: How to Grow Rhubarb in Your Garden.
More from the knotweed family
Sources
Show 5 sources
Retrieved on 23 October 2026. Facts in our own words, one source per value.