6 years ago. Spring is a good time to add rhubarb plants to the garden as well as dividing clumps that have been in place for four or more years. Leaf spots can attack the plant, with the worst being red leaf, or Ramularia, which can ruin the stems. Any of these diseases will weaken the plant and it is best to dig up affected plants and start again on a new site. Host Plants: Rhubarb Description: Affected plants fail to leaf out in the spring, or they may leaf out only to die abruptly. This is the third time I've relocated my bed the first were there for 20 years and I suddenly lost all 8 plants I bought new crowns and moved them to other end of garden maybe 30 ft they lived 2 yrs and they all died . Once in the ground, tamp the soil firmly around the crowns and water deeply. It’s a fungal infection at the base of the stalks, and causes the crowns to turn brown and soft. Cut away old foliage in fall to help prevent leaf spot, whose spores overwinter in the debris. Crown rot is the most common. Don’t replant rhubarb in areas where crown rot has damaged plants before. Crown rot can be a big problem in dense soils, so amend the site liberally with well-rotted manure or compost. Problem: Rhubarb Crown Rot - Phytophthora spp. After a couple of weeks it will literally turn to mush and die away. Other plants may be spindly and produce few leaves. Rhubarb crowns and divisions Planting should be planted at a depth of 5 cm (2 in) leaving 1 m (3.3 ft) between plants and 1.5–1.8 m (5–6 ft) between rows. The cause is a variety of fungi attacking the plant. When you dig the plants up, the roots and crowns are rotted. Need help with Rhubarb "Crown Rot" oldgardenguy_zone6. The stalks and leaves are also killed. CROWN ROT This is easily identified because as the name suggests, the crown of the rhubarb ((the central woody bit) rots! Rhubarb plants can be prone to honey fungus, crown rot and viruses. Unfortunately there’s no remedy.
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