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Variety profile · Broccoli

Growing Green Magic: look beneath the green dome

Green Magic has a blue-green, semi-domed main head and a compact British plant profile. Follow the flower buds closely and learn what the breeder's description does and does not predict for your harvest.

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AI illustration of Green Magic
AI illustration

This image was created with AI from described plant characteristics and growing advice. It shows a possible situation and is not a photograph of a verified cultivar.

Harvested part
Flower buds still closed
Type
Calabrese or sprouting broccoli
Location
Fertile, well-drained
Harvest
Before flowers open

This growing advice helps you choose. Your variety, growth stage, weather and conditions in your space determine the actual timing.

A good start

Sowing under cover and raising seedlings

Start under cover in cool conditions in modules or a seedbed · Broccoli

March–May, only for a suitable harvest typeSow somewhere cool and bright and avoid long, weak growth.

Germination and temperature
Germinate under cover, then grow on in cool, bright, well-ventilated conditions; avoid a hot growing space.
After emergence
Give seedlings light immediately after emergence. A dark loft needs suitable grow lights; warmth alone is insufficient. Ventilate and keep the compost moist without saturating it.
Pricking out and potting on
Sow in modules or prick out manageable young plants. Let the root ball firm up without a check in growth.
Hardening off and planting out
Gradually acclimatise indoor-raised plants to sun, wind and outdoor temperatures; shelter them again on cold nights. Plant out sturdy young brassicas and protect against cabbage root fly and caterpillars where needed.

Early, summer, autumn and winter cultivars have their own windows. The spring period shown is a basic route; use cultivar guidance for overwintering and winter cauliflower.

Sources and use

RHS · kolen ↗Britse teeltrichtlijn voor een gematigd klimaat; de genoemde perioden zijn richtlijnen voor Nederland en Vlaanderen.

Feggies · Broccoli 'Bobby' Biologisch ↗Nederlandse producent of teeltbron; de rasinstructie blijft leidend.

Feggies · Broccoli calabrese – biologische groentezaden (doorplukker) ↗Nederlandse producent of teeltbron; de rasinstructie blijft leidend.

Guideline periods for the Netherlands and Flanders. Check the variety, available light, soil and measured temperatures. Greenhouse heating does not guarantee enough winter light.

Compare how to raise other vegetables →

What makes Green Magic different?

Fruit shape
Semi-domed central headUS-CA
Growth habit
Clump-formingUnited Kingdom
Height
10-50 cmUnited Kingdom
Light
Full sunUnited Kingdom
Main colour
Blue-green central headsUS-CA
Resistances
RHS describes resistance to white rust; no immunity guaranteeUnited Kingdom
Open-pollinated / F1
HybridUS-CA
Flavour
Described as sweetUnited Kingdom
Texture
Tightly closed central head with medium-small flower budsUS-CA
Width
10-50 cmUnited Kingdom

The source context and any limitations are in the background information at the bottom.

Compare with another variety
How it could look in your garden

How to grow broccoli

The options below belong to the plant. From these, choose the method that suits your variety's growth habit.

AI illustration of zomerbroccoli onder gaas
AI illustration

This image was created with AI from described plant characteristics and growing advice. It shows a possible situation and is not a photograph of a verified cultivar.

Summer broccoli under mesh

A bed of healthy young plants gives manageable central heads.

  1. Plant at the variety's recommended spacing.
  2. Cover with mesh on sufficiently tall hoops.
  3. Cut the main head, then monitor side shoots.

For a distinct summer or autumn harvest.

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AI illustration of een compact ras in een ruime container
AI illustration

This image was created with AI from described plant characteristics and growing advice. It shows a possible situation and is not a photograph of a verified cultivar.

A compact variety in a large container

A suitable small variety can be tried for a limited harvest.

  1. Check your variety's documented compactness.
  2. Provide a large container with drainage and suitable potting compost.
  3. Keep growth and moisture steady and harvest closed buds.

For limited bed space; open ground remains more practical for larger plants.

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The shape gives you an identifying feature

Sakata describes Green Magic as having a semi-domed, tightly closed main head with medium-small flower buds. Its colour is described as blue-green. Watch how this profile appears in your growing plant. It helps purposeful observation, but does not mean every head has the same size or harvest date; conditions in your bed remain part of the story.

A hybrid starts with the right packet

The breeder calls Green Magic hybrid. Save packaging and dates in garden notes to retrieve variety and lot for later growing or comparisons. Designation belongs to choice but alone promises no broccoli amount per plant.

A smaller size helps assess the position

The British RHS profile gives ten to fifty centimetres height and spread in full sun. Use this to assess space and follow actual packet spacing. Even compact plants need accessible leaves and buds for hands-on care and harvesting.

A number of days relates to the described cultivation

Sakata's duration is based on directly sown autumn growing in Salinas, California, another location and method. Do not use it as a Dutch countdown. Record actual starts and follow development, keeping commercial descriptions as observation aids rather than promises.

Care is still needed beneath the compact plant

Follow root moisture, especially in drought and bud formation. Weed carefully as broccoli roots relatively shallowly. Small plants still need beneath-leaf attention. Inspect soil and growth so watering responds to reality rather than fixed visit rhythms.

A specific resistance has a limited meaning

The RHS describes Green Magic as resistant to white blister. This indicates a property relating to that particular disease, rather than a general promise that the plant stays disease-free. Keep watching changes in leaves and the main head. Environment, insects and different diseases can each play a part; the cultivar description alone does not identify the cause of your observation.

Examine the small flower buds before cutting

Harvest main heads before flowers open. Density and small-to-medium buds in profiles give concrete observation points. Do not wait solely for generic broccoli dimensions. Judge usable closed heads and visit as frequently as weather-driven development requires.

Follow the sides as well as the dome

The British calabrese list gives Green Magic sideshoots after main heads. Observe your own and harvest usable buds before opening. Note duration. This builds a personal story and next-season comparisons beyond the first harvest photo.

Ready to begin

What you need

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The basics
Propagation
Protection
Harvesting

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More background, sources and image information

SeedSteps editorial team · updated on 11 October 2026. The AI images illustrate species and practical growing situations; they do not prove an exact cultivar, observations from your own garden or yield.

Britse gewasadviezen worden gecombineerd met Nederlandse en Vlaamse informatie waar beschikbaar. Amerikaanse Extension-bronnen ondersteunen plantprincipes en herkenning; hun kalenderdata, lokale plaagdruk, bestrijdingsmiddelen en mestdoseringen worden niet rechtstreeks op Nederland of Vlaanderen toegepast. Vorst, bodemwarmte, standplaats en expliciete rasinformatie blijven de lokale controle. Commerciële bronnen onderbouwen uitsluitend benoemde ras- en plantkenmerken; zij zijn geen affiliate-aanbeveling.

  1. World Checklist of Vascular Plants — 4 juni 2026Royal Botanic Gardens, Kew · accessed 2026-10-07
  2. Common catalogue of varieties of vegetable species — 27 januari 2023Europese Commissie · accessed 2026-10-07
  3. Green Magic: compact rasportretRoyal Horticultural Society · accessed 2026-10-08
  4. Green Magic: hybride en knopvormSakata · accessed 2026-10-08
  5. Broccoli 'Bobby' BiologischFeggies · accessed 2026-10-11
  6. Broccoli calabrese – biologische groentezaden (doorplukker)Feggies · accessed 2026-10-11
  7. Broccoli met paarse spruiten zaden biologischFeggies · accessed 2026-10-11
  8. Broccoli Vert Calabrais zaden biologischFeggies · accessed 2026-10-11
  9. Calabrese: hoofdknoppen en zijscheutenRoyal Horticultural Society · accessed 2026-10-08
  10. Broccoli: blad, knoppen, verzorgen en bewarenUniversity of Maryland Extension · accessed 2026-10-08
  11. Broccoli: wortelvocht, hoofdknop en volgende plukUniversity of Minnesota Extension · accessed 2026-10-08

Supporting evidence by chapter: The shape gives you an identifying feature: Sakata. A hybrid starts with the right packet: Sakata. A smaller size helps assess the position: Royal Horticultural Society. A number of days relates to the described cultivation: Sakata. Care is still needed beneath the compact plant: University of Maryland Extension. A specific resistance has a limited meaning: Royal Horticultural Society, University of Minnesota Extension. Examine the small flower buds before cutting: Sakata, University of Maryland Extension. Follow the sides as well as the dome: Royal Horticultural Society, University of Minnesota Extension.

Fruit shape: Semi-domed central head Rasbeschrijving van de veredelaar in de genoemde marktcontext; geen Nederlandse oogstduur of opbrengstgarantie. Sakata

Growth habit: Clump-forming Brits RHS-rasportret; opgegeven plantmaat is geen Nederlandse plantafstand of oogstkalender. Royal Horticultural Society

Height: 10-50 cm Brits RHS-rasportret; opgegeven plantmaat is geen Nederlandse plantafstand of oogstkalender. Royal Horticultural Society

Light: Full sun Brits RHS-rasportret; opgegeven plantmaat is geen Nederlandse plantafstand of oogstkalender. Royal Horticultural Society

Main colour: Blue-green central heads Rasbeschrijving van de veredelaar in de genoemde marktcontext; geen Nederlandse oogstduur of opbrengstgarantie. Sakata

Resistances: RHS describes resistance to white rust; no immunity guarantee Specifieke Britse RHS-beschrijving van witte-roestweerstand. Geen kwantitatieve proef, Nederlandse veldgarantie of weerstand tegen andere koolziekten; aantasting blijft mogelijk. Royal Horticultural Society

Open-pollinated / F1: Hybrid Rasbeschrijving van de veredelaar in de genoemde marktcontext; geen Nederlandse oogstduur of opbrengstgarantie. Sakata

Flavour: Described as sweet Brits RHS-rasportret; opgegeven plantmaat is geen Nederlandse plantafstand of oogstkalender. Royal Horticultural Society

Texture: Tightly closed central head with medium-small flower buds Rasbeschrijving van de veredelaar in de genoemde marktcontext; geen Nederlandse oogstduur of opbrengstgarantie. Sakata

Width: 10-50 cm Brits RHS-rasportret; opgegeven plantmaat is geen Nederlandse plantafstand of oogstkalender. Royal Horticultural Society