60 days. The thick and fleshy red stalks are 2 inches across at the base. Rhubarb's deeply savoyed, rich dark green leaves contrast beautifully with its burgundy-red veins. Grows to 24 inches tall. Plant in late spring to avoid premature bolting. Type: ORGANIC SEED, SEED TAPE; Size: 3 grams, 7 grams, 1 ounce, 1/4 pound, 1 pound, 1 tape, 3 tapes