Broccoli Waltham 29 Vegetable Seeds
Botanical Name: Brassica oleracea var. italica
Broccoli Waltham 29 is a reliable open-pollinated broccoli variety known for its firm blue-green heads, strong side shoot production and excellent cool-season garden performance.
Key Attributes
Open-Pollinated VarietyReliable broccoli variety suitable for home gardens and seed saving. |
Firm Blue-Green HeadsProduces solid, dome-shaped heads with excellent flavour. |
Side Shoot ProductionContinues producing smaller shoots after the main head is harvested. |
Cool-Season PerformerBest grown through autumn, winter and early spring in most regions. |
Great for Home GardensA dependable choice for backyard vegetable patches and raised beds. |
Nutritious HarvestPerfect for steaming, roasting, stir-fries, soups and fresh seasonal meals. |
Product Description
Broccoli Waltham 29 is a classic open-pollinated broccoli variety valued for its reliable performance, rich flavour and productive side shoots. It is a popular choice for home gardeners wanting a dependable cool-season crop that produces both a main head and follow-up harvests.
Plants produce medium to large blue-green heads with a firm texture and excellent eating quality. Once the central head is harvested, Waltham 29 continues to produce smaller side shoots, extending the harvest window and making the most of garden space.
This variety performs best in fertile, well-drained soil with consistent moisture. It is well suited to autumn and winter growing in many Australian climates and can also be grown in spring where conditions remain cool.
Why Grow Broccoli Waltham 29?
- Reliable open-pollinated broccoli variety.
- Produces firm, blue-green central heads.
- Continues producing side shoots after the main harvest.
- Excellent flavour and texture for home cooking.
- Ideal for cool-season vegetable gardens.
- Suitable for raised beds, backyard gardens and market gardens.
Plant Details
| Plant Type | Cool-season annual vegetable |
| Growth Habit | Upright brassica |
| Plant Height | 45–75 cm |
| Head Type | Firm blue-green central head with side shoots |
| Days to Harvest | 75–90 days |
Sowing Information
| Sowing Method | Raise seedlings or direct sow |
| Sowing Depth | 5–10 mm |
| Germination | 5–10 days |
| Soil Temperature | 10–25°C |
| Plant Spacing | 45–60 cm |
| Row Spacing | 60–90 cm |
| Position | Full Sun |
When to Sow Broccoli Waltham 29 in Australia
| Climate Zone | Best Planting Time | Growing Notes |
|---|---|---|
| Cool | September – February | Sow from spring to late summer for autumn and winter harvests. |
| Temperate | February – May | Best grown through the cooler months for firm head development. |
| Subtropical | March – June | Avoid peak summer heat; provide steady moisture and good airflow. |
| Tropical | April – July | Grow during the dry season and cooler part of the year. |
| Arid | February – May | Use mulch and regular irrigation to reduce heat and moisture stress. |
How to Grow Broccoli Waltham 29
Sow seeds into trays or seedling punnets and transplant when plants are strong enough to handle, usually once they have several true leaves. Seeds may also be direct sown into prepared garden beds where conditions are mild and soil moisture can be maintained.
Plant into fertile, well-drained soil enriched with compost or aged manure. Broccoli is a hungry crop and performs best with steady nutrition, regular watering and minimal stress during head formation.
Keep plants evenly moist, especially during warm weather and as heads begin to form. Mulch around plants to conserve soil moisture, suppress weeds and keep the root zone cool.
Protect young seedlings from cabbage moth, aphids and slugs. Fine insect netting can help reduce pest pressure and improve crop quality.
Harvest
Harvest the main head when it is firm, tight and well formed, before the yellow flowers begin to open. Cut the central head with a short stem attached, leaving the plant in the ground to continue producing smaller side shoots.
Pick side shoots regularly to extend the harvest and encourage continued production.
Perfect For
- Home vegetable gardens
- Raised beds and backyard food gardens
- Cool-season planting
- Market gardens and small-scale growers
- Steaming, roasting, stir-fries and soups
- Fresh seasonal cooking
- Open-pollinated seed saving
Frequently Asked Questions
How long does Broccoli Waltham 29 take to harvest?
Broccoli Waltham 29 usually takes around 75–90 days to harvest, depending on climate, sowing time and growing conditions.
Does Broccoli Waltham 29 produce side shoots?
Yes. After the main head is harvested, plants can continue producing smaller side shoots for an extended harvest.
When should I sow Broccoli Waltham 29?
Broccoli Waltham 29 is best sown for cool-season growing. In many Australian regions, it is planted from late summer through autumn.
Can Broccoli Waltham 29 be grown in containers?
Yes. Use a large container with fertile potting mix, consistent moisture and full sun for best results.
Is Broccoli Waltham 29 open-pollinated?
Yes. Waltham 29 is an open-pollinated broccoli variety suitable for traditional seed saving.
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