Published by Coastline Cedar, a cedar planter maker in North Vancouver. This practical growing guide draws on public university-extension and regional planting-chart sources; it is not a crop-yield guarantee. Updated: October 24, 2026. Check the seed packet, current local conditions and the planter’s published specifications before planting.
Quick answer: Herbs, salad greens and compact vegetables are useful starting points for a container garden in coastal British Columbia. Choose crops to match the planter’s usable soil depth and volume, light, drainage and access to water. Exterior dimensions and overall planter height do not tell you how much growing space is inside.
Coastal BC has a long growing season compared with many Canadian regions, but sowing dates still vary by crop, neighbourhood, exposure and year. Use a local planting chart as a guide, then follow the seed packet and observe your own site.
Good crops to start with
| Crop group | Why it suits a container | Check before planting |
|---|---|---|
| Kitchen herbs | Many herbs are compact and can be harvested a little at a time. | Group plants with similar water and light needs; mint can spread, so keep it in its own pot. |
| Leafy greens | Lettuce, spinach and other greens can fit a modest footprint and support repeat picking. | Check the variety’s season and spacing; heat and long days can change how some greens grow. |
| Radishes and other quick roots | Some short-rooted crops can work in a smaller container. | Use the variety’s recommended soil depth and thin seedlings as directed. |
| Compact or cherry tomatoes | A sunny container can suit a compact variety and makes watering access straightforward. | Tomatoes need a suitable container, steady watering and support where required; choose a variety for your available space. |
Oregon State University Extension notes that many vegetables grown in containers need containers of at least 2–5 gallons and a depth of at least 12 inches, while requirements vary by crop. Treat this as a starting reference, not a substitute for the variety’s instructions. Oregon State University Extension: Container Gardening Basics
Use container mix and keep drainage open
- Use a growing medium made for containers rather than digging garden soil into a planter.
- Keep the drainage openings clear so excess water can leave the container.
- A gravel layer cannot correct a blocked drainage outlet or sealed liner. Research on layers beneath potting mix is more nuanced than a blanket rule: a 2025 PLOS ONE study generally found reduced or unchanged water retention in its tested small containers, but did not test plant growth or full-sized cedar planters. Start with the planter's specified drainage arrangement and suitable container mix; see our cedar planter drainage guide for liner and inner-pot checks.
- Check moisture regularly. Containers can dry out faster than garden beds, especially in sun, wind or warm weather.
Plan planting dates for your part of the coast
For Lower Mainland and coastal gardens, consult a regional chart that distinguishes direct sowing from indoor starting and transplanting. West Coast Seeds publishes a Coastal BC vegetable planting chart; timing is a guide, and local frost exposure and sheltered microclimates can shift the best date. West Coast Seeds: Planting Vegetables in Coastal BC
Before buying seedlings, note how many hours of direct light your planter receives, the wind exposure, and whether you can water it conveniently. A sunny, sheltered patio and a shaded balcony call for different crop choices.
Can you start a winter planter in October?
Winter harvesting and winter sowing are different plans. In mild coastal BC, some established vegetables can remain available for harvest through winter. West Coast Seeds advises starting fall and winter crops in summer or early fall so they have time to grow before the short, wet days. Growth becomes much slower in winter. A packet labelled “winter hardy” does not mean seed sown in late October will quickly fill an empty planter. Read the regional fall and winter harvest guidance.
- Already have established crops? Check the variety’s cold tolerance and harvest instructions, and keep drainage outlets open. Plan for slower replacement growth rather than assuming a summer picking schedule.
- Starting with an empty planter in late autumn? Check the Coastal BC chart for the particular crop before buying seeds. Ask a local nursery which starts are suitable for your exposure now. If the planting window has passed, prepare the planter and plan the next sowing instead of expecting an immediate winter harvest.
- Planning next year? Put a summer reminder in your calendar to choose fall and winter crops while there is still time to establish them.
Choose a crop before choosing the planter size
A useful shopping list has four entries: the exact variety, its recommended spacing, the usable soil depth it needs, and space for any support. “Herbs” or “tomatoes” alone is not specific enough: a compact variety and a large vigorous plant can need very different arrangements.
Sketch the planting area from above using the inside length and width. Mark the centres of the mature plants at the spacing on the label. Then check soil depth separately, allowing for any inner pots. If the layout only works by crowding plants or filling above the intended soil line, choose fewer plants or a different planter. Our inside-versus-outside measuring guide explains which dimensions to request.
The RHS container vegetable guide also highlights the trade-off with small containers: they need more frequent attention to water and feeding. Follow the growing-medium and fertiliser labels for your crop, and check moisture rather than watering solely by the calendar.
Match the planter to the crop
Measure the location and check the planter’s internal growing area before choosing a crop. A tall stand or trellis does not mean the soil compartment is equally deep. If the internal dimensions are not listed for a model, ask the seller before purchasing growing medium or planning deep-rooted crops.
Coastline Cedar’s Elevated Cedar Garden Bed is a standing-height option; the Slim Cedar Balcony Planter has a narrower footprint. Compare the published outside dimensions with your space, and confirm usable planting depth, drainage and access before ordering.
A simple first-season plan
- Measure the available footprint and observe sunlight and wind.
- Pick two or three crops with compatible light and water requirements.
- Check each variety’s spacing, planting depth and local timing.
- Use container growing medium and keep the drainage openings clear.
- Water consistently, then note which varieties perform well in your exact microclimate.
For help comparing planter sizes and soil space, see our raised garden bed sizing guide. For small outdoor spaces, our Vancouver balcony planter guide covers footprint, access and drainage considerations.
Sources
Oregon State University Extension: Container Gardening Basics · Oregon State University Extension: Container Planting · West Coast Seeds: Coastal BC planting chart
Crop suitability depends on variety, usable soil depth, light, drainage and care. Confirm product specifications and current regional planting guidance before ordering or planting.