Brassica oleracea OP
Item #V-1055 | 250 Seeds | Price: $2.95
70 Days to Maturity. Organically grown. Waltham is a great cool-climate Broccoli variety that produces nice, medium-sized heads and a fine crop of side shoots. Non-uniform in maturity resulting in a long harvest period ideal for the home vegetable garden. Known for producing large heads and long stalks, this longtime favorite is excellent for cooking fresh or freezing. Developed to withstand cold, it performs outstandingly in the fall.
- USDA Zone Range: 3-10
- pH level: 5.4-7
- Exposure: Full sun
- Seed spacing: 24-30"
- Planting depth: 1/4"
- Row spacing: 34-48"
- Germination time: 7-12 days
- Maturity range: 70 days
- Average height: 18-36
Vegetable Garden - Tips on How To Grow Broccoli From Seed
|55-98 Days to Harvest |
START INDOORSAn early start on this cool weather annual will give you fine quality green heads before the hot weather reigns.
Rotation and Companion Planting for Broccoli Seeds
Water regularly, applying 1 to 1.5 inches of water per week if it does not rain. You can also measure the amount of water you receive with a rain gauge left in place in the garden, and checked weekly it there is not any chance that it will dry out. If your soil is not naturally rich in nitrogen from an abundant amount of earthworms or by you adding a regular addition of organic, nitrogen-rich compost, then fertilize the plants again with a liquid fertilizer such as fish emulsion or a Herb and Vegetable Food as they begin to develop new leaves and continue liquid feeding until the heads are nearly ready to harvest.
When you begin to see a flower head forming in the center of the plant, check its growth every day. Ideally, you will harvest broccoli while the tiny buds are tightly closed. If the buds begin to swell or show yellow (the flower petals), cut the head from the stem right away, no matter how small it is, because the opening buds have a mealy texture. After cutting the main head, leave the plant to grow bite-sized side shoots in the axils of the leaves. Do not be disappointed if your broccoli head is smaller that those in the grocery store; they are grown in a friendly climate and with lots of pampering. In areas where spring heats up fast, broccoli heads are often better in fall than in spring, so try again for a bigger head later. You can do this by planting in late summer.
Broccolis are temperature sensitive. If transplants sit exposed in cold weather, let’s say below 40 degrees for a week or two, the chilling injury will trigger heads to form too early. On the other end of the scale, if you plant too late and the weather gets hot, you will get the same early blooming, so plant your broccoli on time. The ideal temperature for broccoli is between 65 and 80 degrees.
USDA Hardiness Zone -First Frost Date- Last Frost Date