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Small beads on large, smooth heads with very tightly packed beads and very few side shoots. This remarkably versatile broccoli can be grown year round in cool coastal regions. If you haven't had much luck with broccoli before, try Centennial broccoli seeds. Expect to harvest around three and a half months after transplanting, no matter when you start. So it's a good variety for planting every three or four weeks from spring to late summer. Centennial has a lovely, rich broccoli flavour that is a little sweeter after frost. This is a superb broccoli for CSA programs, as it will produce pretty much all season.
Matures in 100 days. (Hybrid seeds)
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Latin
Latin
Brassica oleraceae var. italica
Family: Brassicaceae
Difficulty
Difficulty
Moderately challenging
Season & Zone
Season & Zone
Season: Cool season
Exposure: Full-sun
Timing
Timing
Start indoors right around the last frost date or later in spring for summer harvest in 2 to 3 months. For fall harvest, start indoors late spring and transplant in July, harvesting just before the first frost date. For overwintering sprouting broccoli in mild winter areas, start indoors late March to mid-April, and harvest the following February to May. Seeds will germinate in 7-10 days. Optimal temperature for germination: 10-30°C (50-85°F).
Starting
Starting
Sow indoors, 3 or 4 seeds per pot, 5mm (¼”) deep, under very bright light. Thin to the strongest plant. Space transplants 45-60cm (18-24″) apart in rows 75-90cm (30-36″) apart.
Days to Maturity
Days to Maturity
From transplant date.
Growing
Growing
Ideal pH: 6.0-6.8. Broccoli is a moderate to heavy feeder that does best in humus-rich soil amended with composted manure. Mix ¼-½ cup complete organic fertilizer into the soil under each transplant. Transplants should be set out by the time they have 6-8 true leaves. When plants are 20-25cm (8-10″) tall, push soil around the stems up to the first big leaf to encourage side shoots. Broccoli does best in cool weather.
Harvest
Harvest
Cut the crown portion of the broccoli with 5 to 6 inches of stem, after it’s fully developed, but before it begins to loosen and separate and the individual flowers start to develop into bright yellow blooms. Removing the central head stimulates regrowth to develop for later pickings. Cutting the head lower on the stem will encourage fewer, but larger side-shoots. The regrowth portion grows from the base of the lower leaves. You can usually continue to harvest broccoli for several weeks.
Seed Info
Seed Info
In optimum conditions at least 80% of seeds will germinate. Usual seed life: 3 years. Per 100′ row: 170 seeds, per acre: 30M seeds.
Diseases & Pests
Diseases & Pests
Slugs and snails – Slugs are attracted to beer, so place a little beer in a cup dug into the ground. Sprinkle broken eggshells around plants to deter slugs and snails.
Flea beetles – Use row covers to help protect plants from early damage. Put in place at planting and remove before temperatures get too hot in midsummer. Control weeds.
Cabbage root maggot – White maggots (larvae) attack all plants of the cabbage family. Larvae tunnel in and feed on roots of plants. Damage causes wilting early on, death of plants a little later on.
Cabbage aphids – A hard stream of water can be used to remove aphids from plants. Wash off with water occasionally as needed early in the day. Check for evidence of natural enemies such as grey-brown or bloated parasitized aphids and the presence of alligator-like larvae of lady beetles and lacewings.
Cabbageworms – Handpick and destroy. Row covers may be useful on small plantings to help protect plants from early damage. Put in place at planting and remove before temperatures get too hot in midsummer.
To help reduce disease, do not plant broccoli or other Brassicas in the same location more than once every three or four years.
West Coast Seeds is a family-owned company that embraces an organic lifestyle. A group of imagination catalysts and passionate educators, dedicated to producing products and services that better the environment. As part of our mission to repair the earth, we aim to inspire and empower people to take responsibility for the state of the planet. For us, organic is about much more than saying no to chemicals, it is about saying yes to building a healthy soil for the future.
For over 35 years, we have upheld our strong reputation as a leading seed supplier, seeking out the highest quality untreated seeds for organic growing and putting them through rigorous independent testing. We built our company on the exchange of generational wisdom in a masterclass community of newbies and masters alike. Our world may have changed, but our commitment to our people, our customers, and our planet has not.
We’re a values-based business that has blossomed into a lifestyle ethos, with products that support seeders, feeders, keepers, and the tiniest of creepers. Our mission? To mobilize the next generation of gardeners with products that nourish soil and grow vigorous, sustainable gardens. We believe all plants should be grown without the use of chemicals, and that the seeds we supply are an important component of regenerative gardening.
We don’t just offer seeds, we offer experience, insight, and understanding. From timeless garden wisdom to new tech know-how, this is learning on the job: knowledge gleaned not from the pages of a book but from burying our fingers in the soil. We test, experiment, observe and adapt, never happier than when we get to share what we’ve learned with others.
Gardens don’t just grow seeds. They grow minds and imaginations, people and communities. Our vision encompasses both the micro and the macro. We eat locally, protect pollinators, teach people to grow from seed, and support regional biodiversity. We think big but act small and deliver unexpected impact — always with community and purpose.
At West Coast Seeds we believe in the power of small and that little can be large. Like the tiniest seed germinates to evoke incremental change with massive potential, so to can our community of gardeners and growers together. Gardeners are the earth’s stewards, planting seeds of creative declaration. The soil provides the canvas, we provide the seeds.
Start indoors right around the last frost date or later in spring for summer harvest in 2 to 3 months. For fall harvest, start indoors late spring and transplant in July, harvesting just before the first frost date. For overwintering sprouting broccoli in mild winter areas, start indoors late March to mid-April, and harvest the following February to May. Seeds will germinate in 7-10 days. Optimal temperature for germination: 10-30°C (50-85°F).
Sow indoors, 3 or 4 seeds per pot, 5mm (¼”) deep, under very bright light. Thin to the strongest plant. Space transplants 45-60cm (18-24″) apart in rows 75-90cm (30-36″) apart.
Ideal pH: 6.0-6.8.
Broccoli is a moderate to heavy feeder that does best in humus-rich soil amended with composted manure. Mix ¼-½ cup complete organic fertilizer into the soil under each transplant. Transplants should be set out by the time they have 6-8 true leaves. When plants are 20-25cm (8-10″) tall, push soil around the stems up to the first big leaf to encourage side shoots. Broccoli does best in cool weather.
Days to maturity: From transplant date.
In optimum conditions at least 80% of seeds will germinate. Usual seed life: 3 years. Per 100′ row: 170 seeds, per acre: 30M seeds.
Cut the crown portion of the broccoli with 5 to 6 inches of stem, after it’s fully developed, but before it begins to loosen and separate and the individual flowers start to develop into bright yellow blooms. Removing the central head stimulates regrowth to develop for later pickings. Cutting the head lower on the stem will encourage fewer, but larger side-shoots. The regrowth portion grows from the base of the lower leaves. You can usually continue to harvest broccoli for several weeks.
