Sutton & Sons Ltd., The Culture of Vegetables and Flowers From Seeds and Roots
“ Rhubarb is easily forced in any place where there is a moderate warmth, and it is only needful to pack the roots in boxes with moss or any light soil, or even rough litter. The roots will push into any moist material and find sufficient food. If entirely exposed to the light, forced Rhubarb has a full colour; but the quality is better, and the colour quite sufficient, if it is forced in the dark; hence when put under the stage in a greenhouse, or any other place where there is a fair share of daylight, it is well to put an empty box or barrel over to promote a certain degree of blanching. ”
