Asparagus, with its vibrant green spears and delicate flavor, is a prized vegetable for any home gardener. While Colorado’s climate presents some unique challenges, growing asparagus in Colorado is entirely possible with the right knowledge and techniques. This guide will equip you with everything you need to know to cultivate thriving asparagus beds and enjoy a bountiful harvest for years to come.
Choosing the Right Asparagus Variety for Colorado
Selecting asparagus varieties well-suited to Colorado’s climate is crucial for success. Opt for varieties known for their cold hardiness and ability to thrive in shorter growing seasons:
- ‘Jersey’ series: These varieties, including ‘Jersey Giant’, ‘Jersey Knight’, and ‘Jersey Supreme’, are renowned for their high yields and resistance to diseases common in Colorado.
- ‘Purple Passion’: This variety stands out with its beautiful purple spears and is known for its sweetness and tenderness.
- ‘Viking’: A newer variety, ‘Viking’ is gaining popularity for its exceptional cold hardiness and early harvest time.
When to Plant Asparagus in Colorado
Timing is everything when it comes to planting asparagus in Colorado. The ideal time to plant asparagus crowns is in the spring, as soon as the ground thaws and is workable, typically between late April and early May.
when to plant asparagus in colorado
Preparing Your Asparagus Bed
Asparagus thrives in well-drained soil with a slightly acidic to neutral pH (6.0 to 7.0). Before planting, prepare your asparagus bed meticulously:
- Choose a sunny location: Asparagus needs at least 6-8 hours of direct sunlight daily.
- Remove weeds and debris: Clear the area thoroughly of any existing vegetation.
- Amend the soil: Incorporate ample amounts of well-rotted compost or manure to improve drainage and fertility.
Planting Asparagus Crowns
Planting asparagus crowns properly sets the foundation for healthy growth:
- Dig trenches: Create trenches 12-18 inches wide and 6-8 inches deep, spacing them 18-24 inches apart.
- Create mounds: Within each trench, build small mounds of soil, spaced 12-18 inches apart.
- Position crowns: Place one asparagus crown on top of each mound, spreading the roots gently.
- Backfill trenches: Gradually fill the trenches with soil, covering the crowns with 2-3 inches of soil.
Caring for Your Asparagus Plants
Once your asparagus plants are established, follow these care guidelines:
- Watering: Water deeply and consistently, especially during dry spells. Asparagus needs 1-2 inches of water per week.
- Fertilizing: Fertilize in early spring with a balanced fertilizer, and side-dress with compost or aged manure in mid-summer.
- Weed control: Keep the asparagus bed weed-free to prevent competition for nutrients and water.
- Pest and disease management: Monitor plants regularly for signs of pests or diseases and take appropriate action if needed.
[image-1|asparagus-colorado-garden|Asparagus plants growing in a raised garden bed in Colorado|A close-up view of healthy asparagus plants thriving in a well-maintained raised bed in a Colorado garden. The vibrant green spears emerge from the soil, promising a delicious harvest.]
Harvesting Your Asparagus
Patience is key when it comes to harvesting asparagus. Allow the plants to establish themselves for two full growing seasons before harvesting any spears. In the third year, you can begin harvesting spears that are at least 6 inches long and have tight, closed tips. Use a sharp knife or asparagus cutter to harvest spears at or slightly below the soil line.
Common Asparagus Growing Challenges in Colorado
Colorado’s climate can present some challenges for asparagus growers. Here’s how to address them:
- Late frosts: Protect emerging spears from late frosts with row covers or blankets.
- Dry soil: Water deeply and consistently, especially during periods of drought.
- Pests: Common asparagus pests in Colorado include asparagus beetles and cutworms. Handpick pests or use insecticidal soap if necessary.
[image-2|colorado-asparagus-harvest| Harvesting fresh asparagus in a Colorado garden | A gardener’s hands holding a bunch of freshly harvested, vibrant green asparagus spears in a Colorado garden, showcasing the rewards of successful asparagus cultivation.]
Conclusion
Growing asparagus in Colorado might require a little extra care and attention, but the rewards of enjoying these fresh, flavorful spears are well worth the effort. By selecting the right varieties, timing your planting carefully, and following proper care techniques, you can savor homegrown asparagus for many seasons to come.
FAQs
1. How long does it take to grow asparagus in Colorado?
Asparagus takes time to establish itself. It’s best to wait two full growing seasons after planting before harvesting any spears.
2. Can I grow asparagus in containers in Colorado?
Yes, you can grow asparagus in containers if space is limited. Choose a large container (at least 15 gallons) with good drainage and use a high-quality potting mix.
3. What are some companion plants for asparagus in Colorado?
Good companion plants for asparagus include tomatoes, parsley, and marigolds.
4. How do I know when my asparagus crowns are dormant?
Asparagus crowns are dormant from late fall to early spring. The ferns will turn yellow or brown and die back to the ground.
5. Can I grow asparagus from seed in Colorado?
Yes, but it’s more challenging and time-consuming than planting crowns. It takes about three years to harvest asparagus grown from seed.
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