When To Plant Asparagus In Oklahoma 🌱
When to plant asparagus in Oklahoma is a question that many gardening enthusiasts ask. Let’s dive into this topic, ensuring your asparagus garden thrives in the Oklahoma climate.
Understanding Asparagus and Its Growth Cycle
Asparagus, scientifically known as Asparagus officinalis, is a long-lived perennial. When established, it can yield spears for up to 20 years. These plants are dioecious, meaning separate male and female plants exist. Males are typically more productive in spear production.
The Ideal Planting Window
The best time to plant asparagus in Oklahoma is in early spring, as soon as the soil becomes workable. This period usually falls between late February and April, depending on your specific location within the state.
Preparing the Soil
Asparagus thrives in well-drained soil with a pH of 6.5 to 7.5. Here’s how to get your soil ready:
- Test Soil pH: Adjust with lime or sulfur if needed.
- Add Organic Matter: Mix in compost or manure.
- Consider Raised Beds: Especially if drainage is an issue.
Planting Asparagus Crowns
- Digging Trenches: About 6-8 inches deep.
- Placing Crowns: Spaced 18 inches apart at the trench bottom.
- Covering Crowns: Start with 2-3 inches of soil, then add more as spears grow.
Care and Maintenance
- Watering: Keep the soil moist, especially in the first two seasons.
- Weeding: Asparagus doesn’t like competition.
- Fertilizing: Apply fertilizer in early spring and post-harvest.
Harvesting Asparagus
- First Year: No harvesting.
- Second Year: Limited harvesting for a few weeks.
- Third Year and Beyond: Harvest for 6-8 weeks, typically late April to early June in Oklahoma.
Pest and Disease Management
Watch out for asparagus beetles, cutworms, Fusarium wilt, and crown rot. Regular monitoring and cultural practices are key.
Asparagus Varieties for Oklahoma
| Variety | Type | Characteristics |
| Jersey Knight | Male | High yield, disease-resistant |
| Mary Washington | Female | Heirloom, quality spears |
| Purple Passion | Both | Unique color, sweeter taste |
Yearly Care Guide
| Year | Action | Purpose |
| 1 | Plant, water, weed, no harvesting | Establish root system |
| 2 | Limited harvesting, maintain | Start spear production |
| 3+ | Full harvest, fertilize | Peak production and health |
When to Plant Asparagus Crowns in Oklahoma
Late fall to early spring is ideal for planting asparagus crowns. This window allows roots to establish before summer heat.
How to Plant Asparagus Crowns
- Site Selection: Full sun, well-drained soil.
- Trench Preparation: 6-8 inches deep, 12 inches wide.
- Soil Amendment: Add compost.
- Crown Placement: 12-18 inches apart.
- Covering Crowns: Leave tips exposed.
- Watering: Thoroughly after planting.
Young Plant Care
- Watering: Regularly in the first year.
- Mulching: Retain moisture and control weeds.
Harvesting Schedule
- Third Year: 6-8 weeks of harvesting.
- Fourth Year and Beyond: 8-10 weeks.
Asparagus Planting and Harvesting Schedule
| Month | Task |
| October-November | Plant crowns |
| March-May | Regular watering |
| Year 3 | 6-8 weeks harvest |
| Year 4 and Beyond | 8-10 weeks harvest |
Asparagus Nutritional Facts
| Nutrient | Amount per 100 grams |
| Calories | 20 |
| Protein | 2 grams |
| Fiber | 2 grams |
| Vitamin A | 10% DV |
| Vitamin C | 12% DV |
| Folate | 17% DV |
| Potassium | 6% DV |
Additional Growing Tips in Oklahoma
- Asparagus Rust: Use fungicides or resistant varieties.
- Beetle Management: Handpick or use insecticides.
Asparagus prefers cooler temperatures, making Oklahoma’s climate ideal. Late fall, winter, or early spring are recommended planting times.
Seed vs. Crown Planting
Starting with one-year-old crowns is more convenient and less susceptible to diseases and pests than seeds.
Starting Seeds Indoors
If you choose seeds, begin indoors late fall or early winter. The growing period is about 100-120 days.
Soil Requirements
Enrich your soil with compost or manure and maintain a slightly acidic to neutral pH level.
Planting and Care Timeline
| Activity | Time |
| Start seeds indoors (optional) | Late Fall – Early Winter |
| Prepare garden bed | Late Winter |
| Plant crowns or seedlings | Early Spring |
| First Harvest | 2 years after planting |
| Full Harvest | 3 years after planting |
| End of Harvesting | Late Spring |
| Grow into ferns | Summer |
| Cut back dead foliage | Late Fall – Early Winter |
Comparing Asparagus Varieties
| Variety | Color | Flavor | Spears/Crown | Disease Resistance |
| Mary Washington | Green | Mild, nutty | Medium | Rust-resistant |
| Jersey Giant | Green | Sweet | High | Rust, Fusarium resistant |
| Purple Passion | Purple | Sweet, mild | Medium | Partial rust resistance |
With careful planting and care, Oklahoma gardeners can enjoy asparagus for years. The first years are crucial, so be patient and allow your plants to establish.
Optimizing Asparagus Growth in Oklahoma’s Climate
Oklahoma’s unique climate presents both challenges and opportunities for asparagus growers. The key is to align your gardening practices with local weather patterns to ensure the success of your asparagus crop.
Climate Considerations for Asparagus
Oklahoma experiences a range of temperatures throughout the year. Asparagus plants require a dormant period provided by the cold winters, followed by the warmth of spring and summer for spear production.
Watering Practices
Water is crucial, especially in Oklahoma’s hot summers. Asparagus needs consistent moisture, particularly during spear formation and early growth. Over-watering, however, can lead to root rot and other issues.
Mulching for Moisture Control
Mulch helps maintain soil moisture and temperature. In Oklahoma’s varied climate, a layer of organic mulch can protect asparagus roots from temperature extremes and retain water during dry spells.
Fertilizing for Optimal Growth
Asparagus benefits from a balanced fertilizer applied in early spring and again after the harvest season. In Oklahoma’s soil, which can vary in nutrient content, a soil test can guide the correct fertilizer choice and amount.
Dealing with Pests and Diseases
Pests and diseases can pose significant challenges to growing asparagus in Oklahoma. Regular monitoring and proactive management are crucial.
Common Asparagus Pests in Oklahoma
- Asparagus Beetles: These beetles can be controlled through handpicking or insecticides.
- Cutworms: Keeping the garden free of weeds and debris can help prevent these pests.
Disease Management
- Fusarium Wilt: Choose resistant varieties and ensure good drainage to prevent this disease.
- Crown Rot: Avoid over-watering and ensure good soil drainage.
Harvesting and Post-Harvest Care
Understanding the right time and method to harvest asparagus will ensure the health of your plants and maximize your yield.
When and How to Harvest
- Third Year Onwards: Begin harvesting when spears are 6-8 inches tall and before the tips open.
- Harvesting Technique: Cut or snap spears at ground level.
Post-Harvest Care
After the harvest season, allow the plants to grow into tall ferns. This growth phase is critical for the plants to gather energy for the next season’s growth.
Beyond the Garden: Enjoying Your Asparagus
Once you’ve harvested your asparagus, it’s time to enjoy the fruits of your labor. Asparagus is versatile in the kitchen and can be prepared in various ways.
Cooking with Asparagus
Asparagus can be steamed, grilled, roasted, or incorporated into a range of dishes. It’s a healthy addition to any meal, rich in nutrients and low in calories.
Storing Asparagus
Fresh asparagus can be kept in the refrigerator for several days. For longer storage, asparagus can be blanched and frozen.
The Long-Term Perspective
Growing asparagus is a long-term commitment. With proper care, your asparagus beds in Oklahoma can produce for 15 to 20 years.
Yearly Maintenance
Each year, monitor your asparagus for signs of pests or diseases, adjust soil nutrients as needed, and prepare the beds for winter.
Expanding Your Asparagus Garden
Once you’ve mastered the basics, consider expanding your asparagus garden. Experiment with different varieties to enjoy a range of flavors and spear types.
Community and Resources
Engaging with local gardening communities and resources can enhance your asparagus growing experience in Oklahoma.
Local Gardening Groups
Joining a local gardening group or club can provide valuable insights and support. Fellow gardeners can offer advice specific to the Oklahoma climate and soil conditions.
Extension Services and Online Resources
Oklahoma’s extension services and online gardening forums are excellent resources for asparagus growers. They offer localized advice and solutions to common gardening challenges.
Summary
Growing asparagus in Oklahoma requires understanding the local climate and soil conditions. With the right care and attention, asparagus can be a rewarding addition to your garden. Regular maintenance, pest and disease control, and proper harvesting techniques are key to a successful asparagus crop. Remember, asparagus growing is a long-term commitment, but the rewards are well worth the effort.
Final Thoughts: When To Plant Asparagus In Oklahoma
I hope this guide has provided you with the knowledge and confidence to start your asparagus garden in Oklahoma. Remember, gardening is a journey of learning and discovery. Enjoy the process and the delicious asparagus spears you’ll grow!
Additional Tables for Quick Reference
Asparagus Growth Stages and Care
| Growth Stage | Care Tips |
| Seedling (if started from seeds) | Keep moist, protect from extreme temperatures |
| Newly Planted Crowns | Water regularly, avoid harvesting |
| Established Plants | Fertilize, monitor for pests |
| Post-Harvest | Allow ferns to grow, prepare for winter |
Seasonal Care Guide for Oklahoma Asparagus
| Season | Task |
| Spring | Plant crowns, begin fertilization |
| Summer | Water regularly, control pests |
| Fall | Prepare beds for winter, cut back ferns |
| Winter | Plan for next season, order supplies |
Growing asparagus in Oklahoma can be a fulfilling experience. With this comprehensive guide, you’re well-equipped to start your asparagus journey. Happy gardening!