How Long Does Broccoli Take to Grow? A Variety-by-Variety Breakdown
Broccoli is a cool season crop that rewards patience and timing. One of the most common questions gardeners ask is simple: how long does broccoli take to grow? The answer depends on whether you are counting from seed, transplant, or even microgreens, and it also depends on the variety.
This guide explains how long does it take for broccoli to grow, breaks down growth time by specific broccoli varieties, and clarifies what to expect from seed to harvest.
If you are comparing options, you can browse the full collection of broccoli seeds to see maturity ranges.
Understanding Broccoli Growth Time
When gardeners ask, how long does it take to grow broccoli, they may be referring to different starting points.
- From transplant: usually 55 to 85 days after planting
- From seed: typically 85 to 120 days total
- Microgreens and sprouts: much faster
So, how long does broccoli take to grow from seed? Most standard heading types need about 90 to 100 days from sowing to mature harvest, depending on temperature and variety.
Cool weather is essential. Broccoli forms its best heads when daytime temperatures stay between 55°F and 75°F. Heat shortens development and can cause early flowering.
For full growing instructions, review our detailed guide on how to grow broccoli and watch the practical steps in our growing broccoli video.
From Seed to Seedling: 0–4 Weeks
If starting indoors, sow seeds ¼ inch deep in trays with drainage holes and keep the soil evenly moist but not waterlogged. Under ideal conditions, seeds usually sprout in 5 to 10 days.
After germination, seedlings begin forming true leaves within 2 to 3 weeks. Provide bright light or use grow lights to prevent stretching and weak stems. Healthy young plants broccoli should be sturdy, deep green, and about 4 to 6 inches tall before transplanting.
At this point, gardeners often wonder how long to grow broccoli before moving it outside. If you are calculating how long to grow broccoli from seed, plan on about 4 to 6 weeks indoors before hardening off. Strong early growth supports later development of tight flower buds, which eventually form the main harvestable head.
Transplant to Harvest: Variety-by-Variety Breakdown
Now let’s look at how long broccoli take to grow depending on specific varieties.
Calabrese Broccoli Seeds (Organic)
Calabrese is a classic Italian heirloom type. It typically matures in about 60 to 75 days after transplant, or roughly 90 to 100 days from seed. It produces a large central broccoli head followed by strong side shoots.
Di Cicco Broccoli Seeds (Organic)
Di Cicco is known for early maturity and extended harvest. Expect 60 to 70 days after transplant. It produces many side shoots after the main head is cut, making it productive over time.
Romanesco Broccoli Seeds (Organic)
Romanesco has striking spiral heads. It usually takes 75 to 90 days after transplant. Because of its dense head structure, steady growth is important for full size.
Rudolph Broccoli Seeds
Rudolph is often grown for fall harvest. It matures in about 60 to 75 days after transplant and performs well in cooler temperatures.
Jacaranda Broccoli Seeds
Jacaranda is a purple-heading type. It generally matures in about 65 to 80 days after transplant, depending on conditions.
Kailaan Broccoli Seeds (Organic)
Kailaan, also called Chinese broccoli, is grown mainly for stems and leaves rather than a large central broccoli head. It matures quickly, often in 50 to 60 days after planting.
Early Jade Gai Lan / Chinese Broccoli Seeds
Early Jade Gai Lan / Chinese Broccoli Seeds is harvested for tender stems and leaves. It can be ready in as little as 45 to 55 days, making it one of the fastest types.
All Season Broccoli Blend Seed Mix
This blend contains varieties with staggered maturity dates. Expect a range between 60 and 85 days after transplant, providing a longer harvest window.
The Gift Seed Tin – Frost Kissed Collection includes Calabrese Broccoli, ideal for spring and fall planting.
For seasonal variety ideas, see Red, White and Broccoli.
Microgreens and Sprouts
Gardeners also ask, how long do broccoli microgreens take to grow and how long do broccoli sprouts take to grow?
- Broccoli sprouts grown in a mason jar from sprouting seeds are ready in 3 to 5 days.
- Growing broccoli sprouts for salads sandwiches requires rinsing twice daily and good air circulation.
- Broccoli microgreens grown in shallow trays are typically ready in 7 to 14 days after planting.
Sprouts are grown in a mason jar without soil. Microgreens are grown in trays and cut just above soil level. After harvest, rinse and dry with paper towels or a salad spinner.
Factors That Affect Growth Speed
When asking how long for broccoli to grow, remember that several factors influence timing:
- Temperature: Cool weather promotes steady head formation.
- Light: Full sun supports faster development.
- Soil fertility: Broccoli is a heavy feeder.
- Water: Even moisture prevents stress.
- Air circulation: Reduces disease pressure.
If you purchase grown broccoli transplants from a grocery store nursery, you shorten the timeline compared to direct seeding.
How Long Does a Broccoli Plant Produce?
Many gardeners ask, how long does a broccoli take to grow and produce? Most heading types produce one main head and several side shoots over 2 to 4 weeks. After that, the plant declines.
Broccoli is typically grown as an annual. It does not come back every year in most climates.
Conclusion
So, broccoli how long to grow? From seed, most varieties need about 90 to 100 days. From transplant, expect 55 to 85 days depending on the variety.
Fast-growing Chinese types mature in under 60 days. Larger heading varieties like Romanesco take longer but produce impressive heads.
By choosing the right variety and planting in cool weather, you can plan harvest timing with confidence.
