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Broccoli is a cool weather crop growing best between the daytime temperatures of 50 and 70 degrees F. Broccoli will tolerate temperatures down into the 20’s but will bolt and go to flower when temperatures reach the 80’s. Broccoli is most often started from seeds indoors 4-6 weeks before transplanting your broccoli plants outside. As with all plants started from seed indoors, you’ll need to harden the broccoli seedlings off by placing them outside in gradually increasing intervals for a week or so. Buy Broccoli seeds online. Depending on your area, start heirloom organic broccoli seeds indoors February-april for planting out in your garden.most spring crops are set out around april 10th and fall crops around july 1st. direct seed broccoli may-june for fall crop. remember broccoli is a cool-weather crop so adjust your planting time accordingly. with a little skill, you can get a spring and fall crop! Heirloom organic broccoli will grow well in reasonably fertile, well-drained, moist soils with plenty of added organic matter. We add lots of rabbit manure or some well-composted chicken manure. A mulch will help keep the ground cool and moist. The pH should be between 6.0 and 7.0 for optimum growth. A pH within this range will discourage clubroot disease and maximize nutrient availability. If you have blended or mulched a nice manure in, you should be fine. Don't forget when transplanting to add a little bone and blood meal to each hole. A teaspoon of each will get your transplants off to a good start!
Check out our Vegetable Growing Guide for helpful growing tips and information.
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Broccoli Seeds - Waltham 29
85-90 days. Waltham 29 Broccoli Seeds. Brassica oleracea var. italica. Annual. Non-GMO. Developed at the University of Massachusetts Amherst's historic research farm, Waltham Field Station, heirloom Waltham 29 broccoli garden...
Broccoli Seeds - Waltham 29 (Organic)
85-90 days. Organic Waltham 29 Broccoli Seeds. Brassica oleracea var. italica. Annual. Non-GMO. Developed at the University of Massachusetts Amherst's historic research farm, Waltham Field Station, Organic Waltham 29 broccoli...
Broccoli Seeds - Di Cicco (Organic)
48 to 70 days. Annual. Organic Heirloom seeds. Di Cicco is an Italian heirloom broccoli dating back from 1890. Very vigorous plants produce heavy crops of 3 to 4 inch...
Broccoli Seeds - Green Sprouting Calabrese
brassica oleracea var. capitata (60-90 days) Start Green Sprouting broccoli early in the season and by early summer you will have tons of sweet broccoli. Harvest the central head then...
Broccoli Seeds - Destiny Hybrid
70 to 75 days. Annual. Non-GMO Hybrid seeds. The Destiny Hybrid is a popular variety of the broccoli garden crop to grow. Destiny Hybrid seeds are more tolerant to heat...
Broccoli Raab Seeds - Spring Rapini
Brassica rapa (36 days) Broccoli Raab is also known as broccoli Asparago in Italy where it is prized for being a culinary delight. Broccoli Raab Seeds - Spring Rapini Spring...
Broccoli Seeds - Di Cicco
Brassica oleracea (50-70 days) Di Cicco is an Italian heirloom broccoli dating from 1890. Di Cicco broccoli is very vigorous, emerald green, producing nice central heads 3-5" wide. Approx. 9,000...
Broccoli Seeds - Romanesco
Brassica oleracea (75 days) Romanecso reminds me of the patterns you would see when looking through a kaleidoscope as a kid. It has great spiraling designs and shades of apple-green...
Broccoli Seeds - Chinese Broccoli - Kailaan
Broccoli Seeds - Chinese Broccoli - Kailaan. Heirloom, Non-GMO. Brassica oleracea var alboglabra. Also known as cai ro, chair lan, Chinese broccoli, Chinese kale, gailaan, gai lan, gailon, gelancai, guy...
Broccoli Seeds - Romanesco - Organic
Brassica oleracea (75 days) Romanecso reminds me of the patterns you would see when looking through a kaleidoscope as a kid. It has great spiraling designs and shades of apple-green...
Broccoli Seeds - Chinese Broccoli - Early Jade - Hybrid
40-50 days to maturity. Brassica oleracea var alboglabra ‘Early Jade’. Early Jade Chinese Broccoli Seeds. Non-GMO, Hybrid, Cool-season Annual. Closely related to European cabbage, Chinese Broccoli was introduced to China...
Broccoli Seeds - Early Purple Sprouting
Brassica oleracea var. italica (59 days) Purple sprouting broccoli is an old English type broccoli. Early Purple Sprouting Broccoli is not only a colorful addition to salads, but it is...
Broccoli Raab Seeds - Sorrento
40 to 50 Days until mautre. Brassica papa afar ruvo. Sorrento Broccoli Raab Seeds. Annual. Heirloom. Non-GMO. Open-pollinated. “Rapini,” is a separate moniker for the flowering Brassica. This is a...
Broccoli Seeds - Chinese Broccoli - Late Jade - Hybrid
60-70 days to maturity. Brassica oleracea var alboglabra ‘Late Jade’. Late Jade Chinese Broccoli Seeds. Non-GMO, Hybrid, Cool-season Annual. Originating in the Mediterranian, Chinese Broccoli was introduced to China in...
Broccoli Seeds - Chinese Broccoli - Big Stem
40-50 days to maturity. Brassica oleracea var alboglabra ‘Big Stem’. Big Stem Chinese Broccoli Seeds. Non-GMO; hybrid; cool-season annual. Closely related to European cabbage, Chinese broccoli was introduced to China...
Broccoli Seeds - Ramoso Santana
Ramoso Santana Broccoli Seeds. 48 to 70 days. Brassica Oleracea. Non-GMO, Open Pollinated. A rare and little known crop of sprouting broccoli, Ramoso Santana is a delicious and slow-bolting Mediterranean...
Broccoli Seeds - Purple Sprouting (Organic)
40 to 60 days. Annual. Non-GMO seeds. The Broccoli Raab, also known as Rapini, is more closely related to the turnip and mustard than actual broccoli. This annual crop can...
Broccoli Raab - Early Fall Rapini
Early Fall Rapini thrives when planted in the early fall, but can be grown in the spring and summer as well. It does best in 60-65 degree weather. Seeds can...
Broccoli, Sprouting - Mendocino F1 Untreated Seeds
Overwintering variety with upright plant habit and high yields. Good cold tolerance, but not recommended for areas with prolonged freezing periods. Late summer planting for early March harvest. Overwintering variety...
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