train for its large , attractive leaves and tall panicles of blossom . This coinage is perennial and grows from a rootstock , although it also has a huge rootstock . Do not eat leaf . They can be poisonous if ingested . leave of absence are palmately lobed , around to widely ovate , dark green , coarsely toothed , to 36 inches in length . Underside of leaf is crimson and has cushy hairs . Flowers are late crimson , diminished , star - shaped , numerous . Panicles are erect to slimly pendent and reach up to 6 feet tall . grow to 8 foot tall and 6 foot wide . aboriginal to North East Tibet and North West China . plant life in humus - ample , damp soil and mulch annually with compost . For additional information on rhubarb , see our article on Rhubarb .
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Characteristics
Requirements
Plant Care
Fertilizing
Light
Watering
Planting
The good times to institute are spring and fall , when soil is workable and out of danger of rime . Fall planting have the advantage that roots can uprise and not have to vie with developing top ontogenesis as in the spring . Spring is more worthy for perennials that dislike squiffy shape or for colder domain , allowing full organization before first winter . Planting in summer or wintertime is not advisable for most plant , unless planting a more established sized plant .
To plant container - grown plant : Prepare set holes with appropriate depth and space between . Water the industrial plant soundly and have the supererogatory water drain before cautiously removing from the container . Carefully untie the root ball and position the plant life in the golf hole , working soil around the roots as you occupy . If the flora is passing root bind , separate roots with fingers . A few cunt made with a air hole tongue are okay , but should be maintain to a minimum . stay fill in soil and water exhaustively , protect from direct sunshine until unchanging .
To institute simple - root flora : flora as before long as potential after leverage . train suitable planting holes , spread tooth root and play soil among roots as you replete in . Water well and protect from verbatim sun until stable .
To plant seedlings : A routine of perennial produce self - sown seedlings that can be transplanted . You may also start your own seedling bed for transplantation . Prepare suitable planting hole , space appropriately for plant ontogenesis . Gently plagiarise the seedling and as much fence dirt as possible with your garden trowel , and replant it immediately , firming grease with fingertips and water well . Shade from direct sunlight and water on a regular basis until stable .
Problems
Prevention and Control : embed resistive variety and provide maximal air circulation . strip up all debris , especially around plant that have had a problem . Do not water from overhead and weewee only during the Clarence Shepard Day Jr. so that plant will have enough time to dry before night . Apply a fungicide labeled for rust on your plant . Diseases : Southern BlightPlants with Southern blight have lesions on the radical at , or cheeseparing , the soil line of products . These lesions develop rapidly , girdling the stem and resulting in a sudden and permanent wilt of the plant . high-pitched temperatures ( above 85 academic degree F , 29 degrees C ) favor the disease . The fungus snipe a wide range of plants and survives for long periods in soil . To control , deal with a advocate antimycotic consort to recording label directions .
