Planting Timeline
Showing dates for Bush Blue Lake 274 in USDA Zone 7
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Bush Blue Lake 274 · Zones 3–10
Growing Details
Zone-by-Zone Planting Calendar
| Zone | Indoor Start | Transplant | Direct Sow | Harvest |
|---|---|---|---|---|
| Zone 3 | — | — | May – July | July – September |
| Zone 4 | — | — | May – July | July – September |
| Zone 5 | — | — | May – August | June – September |
| Zone 6 | — | — | April – August | June – October |
| Zone 7 | — | — | April – August | June – October |
| Zone 8 | — | — | March – September | May – November |
| Zone 9 | — | — | March – October | April – November |
| Zone 10 | — | — | February – October | April – December |
Complete Growing Guide
Start preparing your garden bed in early spring by working compost or well-aged manure into the soil to a depth of 6-8 inches. Bush Blue Lake 274 thrives in loose, well-draining soil with a pH between 6.0-7.0. Unlike pole beans, this variety requires no support structure, making it perfect for smaller gardens or raised beds.
Wait to direct sow until your soil temperature consistently reaches 60°F and nighttime temperatures stay above 50°F. Plant seeds 1-2 inches deep and 4-6 inches apart in rows spaced 18-24 inches apart. For continuous harvest, make successive plantings every 2-3 weeks until 10 weeks before your first expected fall frost.
Apply a balanced fertilizer (10-10-10) at planting, then switch to a lower-nitrogen fertilizer once flowering begins to prevent excessive foliage growth at the expense of pod production. Side-dress with compost or a phosphorus-rich fertilizer when plants begin flowering.
Avoid working in the garden when plants are wet to prevent spreading bacterial diseases. Water at soil level rather than overhead to keep foliage dry. Mulch around plants with 2-3 inches of organic matter to retain moisture and suppress weeds, but keep mulch 2 inches away from plant stems.
The biggest mistake gardeners make is planting too early in cold soil, which leads to poor germination and weak plants. Another common error is over-fertilizing with nitrogen, which produces lush foliage but fewer pods. To maximize yield, harvest pods regularly every 2-3 days once production begins – leaving mature pods on the plant signals the plant to stop producing new flowers.
Harvesting
Begin checking for harvest-ready pods 50-55 days after planting when pods reach 5-6 inches long and are still slender with small, undeveloped seeds inside. The pods should be firm and crisp with a bright dark green color and smooth surface. Perform the 'snap test' – a ready pod will break cleanly with a crisp snap when bent.
Harvest in early morning when pods are fully hydrated and at peak crispness. Use both hands: hold the plant stem steady with one hand while gently pulling pods with the other, or use scissors to avoid damaging the plant. Pick pods every 2-3 days during peak production to encourage continued flowering. Pods left too long become tough and stringy, even though this is technically a stringless variety. Stop harvesting when pods feel spongy or you can clearly see large seed outlines through the pod wall.
Storage & Preservation
Fresh Bush Blue Lake 274 pods store best in the refrigerator crisper drawer for 5-7 days in a perforated plastic bag to maintain humidity while allowing air circulation. Don't wash pods until ready to use, as excess moisture promotes decay.
For freezing, blanch whole pods in boiling water for 3 minutes, then plunge into ice water. Drain thoroughly and pack into freezer bags – properly blanched beans maintain quality for 8-10 months. This variety also cans exceptionally well using pressure canning methods, maintaining its tender texture and sweet flavor. The compact pods are perfect for pickle making, either as dilly beans or pickled with spices. Dehydrating is less ideal for this variety as it loses much of its appealing texture.
History & Origin
Bush Blue Lake 274 represents a triumph of plant breeding, developed as a compact alternative to the famous Blue Lake pole bean that originated in the Pacific Northwest in the early 1900s. The original Blue Lake variety was discovered and developed by Oregon State University researchers who recognized its superior flavor and processing qualities, making it the gold standard for commercial green bean production.
The bush version was created through selective breeding programs in the 1960s-70s to capture the exceptional eating qualities of Blue Lake in a determinate, space-efficient plant. The '274' designation refers to the specific breeding line that achieved the optimal balance of compact growth habit, concentrated pod set, and the legendary Blue Lake flavor profile. This hybrid became particularly important for home gardeners and small-scale farmers who wanted premium quality beans without the infrastructure requirements of pole varieties.
Advantages
- +Delivers authentic Blue Lake flavor and texture without requiring trellising or support structures
- +Concentrated harvest period allows for efficient processing and preservation
- +Exceptional resistance to common bean mosaic virus reduces crop loss
- +Pods maintain stringless quality even when slightly overripe
- +Compact 18-24 inch plants fit easily in small gardens and containers
- +Reliable germination and vigor in cooler soil conditions
- +Outstanding freezing quality with minimal texture loss after preservation
Considerations
- -Shorter harvest window compared to pole varieties means less continuous production
- -Plants can become top-heavy when fully loaded and may need light support in windy areas
- -More susceptible to soil-borne diseases due to lower plant height
- -Requires successive plantings for season-long harvest unlike indeterminate pole beans
Companion Plants
Plant Together
Marigold
Repels bean beetles, aphids, and nematodes while attracting beneficial insects
Basil
Repels aphids, spider mites, and thrips that commonly attack beans
Corn
Provides natural support structure for beans while beans fix nitrogen for corn
Summer Squash
Large leaves provide ground cover, retain moisture, and suppress weeds around bean plants
Carrots
Deep taproot breaks up soil for bean roots and doesn't compete for nutrients
Nasturtium
Acts as trap crop for aphids and cucumber beetles, protecting beans
Radish
Quick-growing companion that loosens soil and is harvested before beans need space
Catnip
Repels flea beetles and ants that can damage bean plants
Keep Apart
Onions
Stunts bean growth and reduces yield through root secretions
Garlic
Inhibits bean growth and nitrogen fixation through allelopathic compounds
Sunflower
Competes heavily for nutrients and water, may release growth-inhibiting chemicals
Pests & Disease Resistance
Resistance
Good resistance to common bean mosaic virus and bacterial blight
Common Pests
Bean beetles, aphids, spider mites, cutworms
Diseases
Bacterial blight, anthracnose, rust, white mold