Are you looking to make the most of your raised bed garden? Whether you’re working with a small urban space or a sprawling backyard, interplanting is an excellent technique to maximize productivity while maintaining soil health. At DH Garden Centre, we love sharing innovative gardening strategies that help Canadian gardeners get the best out of their plots year-round. In this guide, we’ll explore the magic of interplanting, how it benefits your garden, and how you can start implementing it today!

What is Interplanting?
Interplanting (or intercropping), is a sustainable gardening practice where multiple crop species are cultivated together in the same space. This method leverages the natural interactions between plants to optimize growth, enhance soil health, and improve overall garden productivity.
Key Benefits of Interplanting:
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Efficient Resource Utilization: By pairing plants with different root depths and nutrient needs, interplanting ensures that soil resources are used more effectively, reducing competition and promoting healthier growth.
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Pest and Disease Management: Diverse plantings can deter pests and minimize the spread of diseases. For instance, certain plants can repel harmful insects, while others may attract beneficial predators, creating a balanced ecosystem.
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Weed Suppression: Dense planting patterns shade the soil, inhibiting weed germination and growth, leading to reduced maintenance efforts.
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Continuous Harvests: Combining crops with varying maturity rates allows for staggered harvesting, ensuring a consistent supply of fresh produce throughout the growing season.
Implementing Interplanting in Raised Beds:
Raised beds are particularly well-suited for interplanting due to their controlled environment and efficient use of space. Gardeners can strategically select plant combinations that complement each other, leading to a more productive and resilient garden.
By adopting interplanting techniques, gardeners can create diverse, thriving ecosystems that not only yield abundant crops but also contribute to sustainable and environmentally friendly gardening practices.

Interplanting in Raised Beds: Example with Onions and Radishes
One simple yet effective interplanting technique involves onions and radishes. Onions have a long growing season and a shallow root system, leaving plenty of room for a quick-growing companion like radishes.
How to Interplant Onions and Radishes:
- Space the onions about 4 to 6 inches apart in a triangular pattern.
- Sow radish seeds in the empty spaces between the onion rows.
- Water evenly to ensure both crops establish well.
- Harvest the radishes in 3-4 weeks, before the onions need more space.
Radishes are a great choice because they mature quickly, allowing you to get an extra crop before the onions fully develop. Plus, their rapid growth helps suppress weeds!

More Interplanting Ideas for Your Raised Bed
Interplanting isn’t just limited to onions and radishes—you can apply this method with various vegetables. Here are some excellent combinations to try:
1. Corn and Beans (Tall & Small Pairing)
- Corn: Tall, deep-rooted crop that takes time to mature.
- Beans: Climbing beans use the corn stalks for support, saving space and enriching the soil with nitrogen.
2. Tomatoes and Leafy Greens (Shade-Friendly Companion Planting)
- Tomatoes: Tall plants that provide shade.
- Lettuce, Spinach, or Arugula: These leafy greens thrive in the partial shade of tomato plants and prevent soil from drying out.
3. Carrots and Green Onions (Root and Leafy Mix)
- Carrots: Deep-rooted crop that grows downward.
- Green onions: Shallow-rooted and grow aboveground, making them perfect neighbors.
4. Cucumbers and Dill (Mutual Benefit Pairing)
- Cucumbers: Need plenty of moisture and space to spread.
- Dill: Attracts pollinators and beneficial insects while taking up little ground space.
Seasonal Interplanting for Continuous Harvests
Another way to maximize your raised bed is by planning crops according to the seasons. Here’s how:
- Spring: Start with cool-season crops like radishes, spinach, and onions.
- Summer: As these crops mature, plant tomatoes, peppers, or beans in the same space.
- Fall: Once summer crops decline, plant kale, carrots, or beets for an extended harvest.
By continuously rotating and interplanting, you ensure your soil remains covered, nutrients are well-balanced, and you never have bare patches wasting space.
Frequently Asked Questions (FAQs) About Interplanting
1. What vegetables grow well together in a raised bed?
Many vegetables thrive when interplanted. Some classic combinations include:
- Tomatoes and basil (basil enhances tomato flavor and repels pests)
- Carrots and onions (onions deter carrot flies)
- Lettuce and radishes (fast-growing radishes make space for slower lettuce)
2. Can I interplant flowers with vegetables?
Yes! Flowers like marigolds, nasturtiums, and calendula help repel pests while attracting pollinators, improving overall garden health.
3. How do I avoid overcrowding when interplanting?
Plan spacing carefully by pairing shallow-rooted crops with deep-rooted ones and fast growers with slower-growing plants. Using a planting guide can help maximize space effectively.
4. Does interplanting work in small urban gardens?
Absolutely! Interplanting is perfect for urban gardens, balconies, and small spaces, as it maximizes the use of every inch of soil.
5. Where can I buy seeds and supplies for interplanting in Canada?
At DH Garden Centre, we offer everything you need for successful interplanting, including organic seeds, premium soil mixes, and gardening tools. Visit our online store or drop by our Vancouver location to get started on your interplanting journey today!
Start Interplanting in Your Raised Beds Today!
Interplanting is a simple yet effective way to get more harvests from the same space, protect your soil, and keep your garden thriving throughout the seasons. Whether you’re growing onions with radishes, tomatoes with leafy greens, or planning seasonal rotations, there’s always a way to make your raised beds more productive.
Happy Gardening! 🌱