Rhubarb Crowns

Rhubarb crowns are young, established rhubarb plants (often also referred to as rhubarb roots). Unlike growing from seed, crowns are the easiest and most reliable way to start rhubarb and will establish quickly in the garden. Once planted and settled, they typically produce a harvest from the first growing season or shortly after, depending on planting time and conditions. Because they are already partially developed plants, crowns give you a head start and tend to be more consistent than seed-grown plants. Rhubarb crowns are perennial, that will remain in the same position for up to 10 years, and the soil immediately surrounding the plant should not be disturbed.

Rhubarb requires very little care. Every year after the leaves have died down, spread a new layer of garden compost or other well-rotted organic matter around (but not touching) the plant. This will conserve water and prevent weeds. In dry periods, give the plants a good watering, although this should only be required occasionally. In February, sprinkle a handful of general fertiliser around the plants. Remove any weeds as they appear. The only other attention required is to cut off the flower heads which may appear in the early spring as new rhubarb stalks emerge. Do this as soon as possible - if the flower head is left to grow and set seed, the plant will never fully recover to good strength.

What to look out for when growing Rhubarb: 

If your rhubarb isn’t producing, it’s worth checking the crown itself:

• Firmness of the roots: Healthy crowns should feel firm and solid. If they are soft or squishy, this is usually a bad sign and can indicate rot or disease, often caused by overly wet soil or poor drainage.
• No growth appearing: Rhubarb can take time to establish, but prolonged inactivity may suggest the crown has failed.
• Seed Head: Was this cut off before the seed had set?

Good planting conditions (well-drained soil and a sunny or partially shaded spot) are key to strong growth and reliable cropping.