Where to Buy Onion Sets?
You can buy onion sets at a variety of locations including local garden centers, online retailers specializing in gardening supplies, and sometimes even large hardware stores. These sets are a great option for gardeners who want a head start on the growing season.
Why Onion Sets are a Great Choice
Onion sets are small, immature onion bulbs that are grown from seed the previous year. They offer several advantages over starting onions from seed directly:
- Shorter growing season: Sets mature much faster than seeds, allowing you to harvest onions sooner.
- Easier to establish: Sets are more robust and less susceptible to seedling diseases than onions started from seed.
- More predictable results: You’ll have a better idea of what variety you’re getting and how it will perform.
- Suitable for colder climates: Sets can be planted earlier in the spring, even in areas with shorter growing seasons.
Types of Onion Sets Available
Onion sets come in a variety of colors and flavors, generally falling into these main categories:
- Yellow Onions: The most common type, known for their strong flavor and good storage qualities.
- Red Onions: Milder and sweeter than yellow onions, often used in salads and sandwiches.
- White Onions: Sharp and pungent, ideal for grilling and salsas.
Within each color category, you’ll find different varieties, each with its own unique characteristics. For example, yellow onion varieties include ‘Stuttgarter Giant’ and ‘Yellow Sweet Spanish’, while red onion varieties include ‘Red Burgundy’ and ‘Red Creole’.
Where to Purchase Onion Sets
Finding the right source for your onion sets is crucial for a successful harvest. Here are some options:
- Local Garden Centers: These are a great option for getting personalized advice and supporting local businesses. You can often inspect the sets before purchasing them.
- Online Retailers: Offer a wider selection of varieties and are convenient for those who live in rural areas or have limited access to garden centers. Reputable online retailers often ship high-quality sets directly to your door.
- Hardware Stores: Some large hardware stores, especially those with gardening sections, sell onion sets seasonally.
- Seed Catalogs: Many seed companies also sell onion sets. Ordering through a catalog often provides more detailed information about each variety.
Factors to Consider When Choosing a Source
When deciding where to buy onion sets, consider the following factors:
- Reputation: Choose a reputable supplier with a history of providing healthy sets. Read reviews and check for testimonials.
- Variety Availability: Ensure the supplier carries the onion varieties you’re interested in growing.
- Quality: Inspect the sets carefully before purchasing. They should be firm, dry, and free from mold or rot. Avoid sets that are sprouting prematurely.
- Price: Compare prices from different suppliers to ensure you’re getting a fair deal.
- Shipping Costs (for online retailers): Factor in shipping costs when comparing prices from online retailers.
Planting Onion Sets: A Step-by-Step Guide
- Prepare the Soil: Choose a sunny location with well-drained soil. Amend the soil with compost or other organic matter.
- Planting Time: Plant onion sets in early spring as soon as the ground can be worked.
- Spacing: Plant sets about 4-6 inches apart in rows that are 12-18 inches apart.
- Planting Depth: Plant the sets so that the tip of the bulb is just below the surface of the soil.
- Watering: Water thoroughly after planting and keep the soil consistently moist until the sets are established.
- Fertilizing: Fertilize with a balanced fertilizer every few weeks during the growing season.
Common Mistakes to Avoid
- Planting too deep: Planting onion sets too deep can lead to rot.
- Using old or damaged sets: Old or damaged sets are less likely to thrive.
- Ignoring soil drainage: Onions need well-drained soil to prevent rot.
- Insufficient watering: Onions need consistent moisture, especially during the early stages of growth.
- Neglecting weed control: Weeds can compete with onions for nutrients and water.
Table: Comparing Onion Set Retailers
| Retailer | Selection | Price | Quality | Shipping (Online) | Local Availability |
|---|---|---|---|---|---|
| Local Garden Center | Limited | Moderate | Generally Good | N/A | Excellent |
| Online Retailer | Wide | Variable | Variable | Yes | N/A |
| Hardware Store | Limited | Affordable | Moderate | N/A | Good |
| Seed Catalog | Moderate | Moderate | Generally Good | Yes | N/A |
Frequently Asked Questions (FAQs)
What size onion set is best to buy?
The ideal size of an onion set is about the size of a dime. Sets that are too large are more likely to bolt, which means they will flower and produce seed, but the bulb will not develop properly. Smaller sets take longer to mature but are less prone to bolting.
Can I plant onion sets in the fall?
In some warmer climates, you can plant onion sets in the fall for an early spring harvest. However, in most regions, it’s best to plant them in early spring. If you do plant in the fall, ensure you choose a variety that is hardy enough to withstand winter conditions.
How long does it take for onion sets to mature?
Onion sets typically take 90-120 days to mature, depending on the variety and growing conditions. Check the specific variety’s information for an estimated maturity date.
What kind of soil do onion sets need?
Onion sets need well-drained soil that is rich in organic matter. Amend the soil with compost or other organic materials before planting. A soil pH of 6.0 to 7.0 is ideal.
How do I store onion sets before planting?
Store onion sets in a cool, dry, and well-ventilated place until you are ready to plant them. Avoid storing them in a humid environment, as this can cause them to rot.
Can I use leftover onion sets from last year?
It’s generally not recommended to use leftover onion sets from the previous year. They may have deteriorated over time and are less likely to thrive. New sets are always the best option.
How much should I water my onion sets?
Water onion sets regularly, especially during dry periods. Keep the soil consistently moist but not waterlogged. Overwatering can lead to rot.
Do I need to fertilize onion sets?
Yes, onion sets benefit from regular fertilization. Use a balanced fertilizer every few weeks during the growing season. Follow the instructions on the fertilizer package.
How do I prevent onion sets from bolting?
To prevent onion sets from bolting, choose smaller sets and avoid planting them too early in the spring. Adequate watering and fertilization can also help.
What are some common pests and diseases that affect onion sets?
Common pests and diseases that affect onion sets include onion maggots, thrips, and fungal diseases like downy mildew. Monitor your plants regularly and take appropriate action if you notice any signs of infestation or disease.
When is the best time to harvest onions grown from sets?
Harvest onions when the tops start to fall over and turn yellow or brown. This indicates that the bulbs are mature.
How do I cure onions after harvesting them?
Cure onions by spreading them out in a dry, well-ventilated place for 2-3 weeks. This allows the outer layers to dry and helps prevent rot during storage.