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very earliest plantings. On the tail end of bred to mature in 70 days, while others the planting season, make your last planting require 100 days. about 80 days before the average ﬁ rst fall Planting in accordance with optimum soil tem- frost date. In addition to sequential plant- perature is another common way to schedule ings, you can plant varieties that require plantings. The table below, Soil Tempera- different lengths of time to reach maturity. ture Germination Ranges for Select For example, some sweet corn varieties are Vegetables, provides a quick summary. Soil Temperature Germination Ranges for Select Vegetables TEMP (° F) PLANT 45–85 cabbage, kale, broccoli, collards (germinate well at 85, seedlings prefer 45–65) 35–80 lettuce and most salad greens (at more than 80, germination rate drops 50%) 35–75 spinach (optimum 68) 50–85 onions (optimum 75) 45–95 radishes (optimum 85) 50–85 beets, Swiss chard (optimum 85)Related ATTRA 60–85 beans, snap and dry (optimum 80)Publications 70–85 beans, lima (optimum 85)Community Supported 40–75 peas (optimum 75)Agriculture (CSA) 60–95 corn (optimum 95)Market Gardening: 65–82 tomatoes (optimum 80)A Start-up Guide 60–95 peppers (optimum 85) 65–100 cucumbers, melons, squash (optimum 80–95) From: Market News, March 1995. Insects and diseases are another major personal plan for successive plantings. factor that can affect production schedul- The Succession Planting chart, on the ing. In the humid southeast, tomato grow- next page, can be used as a template and ers often plant both spring and fall tomato adapted for your location. crops because the early plants succumb A beneficial outcome of the Community to disease in mid- Supported Agriculture movement, with summer. A market its heavy emphasis on multiple crops and gardener in North a continuous supply of customer favorites Carolina reports that throughout the season, is the development she sets out tomatoes of record-keeping and crop-planning sys- three times during the tems geared to direct market farmers. A few growing season. She of these can be found through the resources also notes that squash listed below. You can find many others vine borer is so bad in in the ATTRA publication Community summer squash that Supported Agriculture (CSA). she only gets about The ATTRA publication Market Garden- two weeks of harvest ing: A Start-up Guide also provides ideas from each planting. and resources for vegetable planning and Once you have a record-keeping. You can ﬁ nd these publi- framework of possible cations at the website, www.attra.ncat.org/Abundance draws customers at farmers markets. planting dates, you attra-pub, or order a free printed copy byPhoto courtesy Jim Lukens, SSAWG. can work out your calling 800-346-9140.Page 2 ATTRA Scheduling Vegetable Planting for Continuous Harvest
Succession Planting esti- seed seed plant plant actual interval mated length ofCROP to ﬂat, to ﬂat, to ﬁeld, to ﬁeld, days to days to harvest between comments planned actual planned actual harvest plantings harvestarugula 30 2 weeks best in cool weatherbeans, bush 60 2 weeks summerbeans, lima 65 * summerbeans, pole 60-70 * summerbeets 40-70 2 weeks spring & fallbroccoli 60-70 f.t. 2 weeks spring & fallcabbage 70-80 f.t. 3 weeks spring & fallcarrots 85-95 3 weeks spring & fallcauliﬂower 50-65 f.t. 2 weeks spring & fallcollards 60-100 * fallcorn, sweet 70-100 2 weeks summercucumbers 60 4-5 weeks summeredamame 70 * summereggplants 65 f.t. 8 weeks summerkale 40-50 2 weeks spring & fallkohlrabi 50-60 2 weeks spring & falllettuce, head 70-85 2 weeks spring & falllettuce, leaf 40-50 2 weeks best in cool weathermuskmelons 80-90 2 weeks summerokra 70 * summeronions, dry 90-120 f.t. *onions, green 85 2-3 weeksgreens 30-60 2 weeks best in cool weatherpeas 55-70 * spring & fallpeas, 65 * summersouthernpeppers 60-70 f.t. * summerpotatoes 90 * spring & fallpumpkins 90-120 * summerradishes 25-30 2 weeks best in cool weatherradishes, 60-75 * spring & falldaikonspinach 50-60 2 weeks spring & fallsquash, summer 45-60 4-8 weeks summersquash, winter 90-120 * summertomatoes 65-90 f.t. 2 summerturnips 35-40 2 weeks best in cool weatherwww.attra.ncat.org ATTRA Page 3