Planting Rhubarb in Pots and Containers for Small Gardens
Think rhubarb is just for spacious allotments? Think again! With a big enough pot, the right variety, and a little seasonal care, you can enjoy lush, productive rhubarb in the tiniest patio, balcony, or city garden. Here’s how to grow rhubarb in containers for a harvest that rivals any country patch.
Why Grow Rhubarb in Pots?
- Space-saving: Perfect for renters, paved yards, or adding edible drama to patios.
- Flexible: Move plants for sunlight or winter shelter as needed.
- Control: Avoids spreading crowns and lets you manage watering/drainage more precisely.
- Ornamental: Red stalks and massive leaves add drama to small-space gardens.
Best Rhubarb Varieties for Containers
- ‘Timperley Early’ – Reliable, compact, and early-cropping.
- ‘Fulton’s Strawberry Surprise’ – RHS award-winner with good color.
- ‘Canada Red’ or ‘Amethyst’ – Compact and productive, with vivid stalks.
- Any modern, quick-cropping hybrid – Ask at local nurseries for patio-suitable types.
Picking the Right Pot
- Deep and wide: Minimum 40cm (16″) diameter and depth, ideally bigger.
- Material: Terracotta, heavy-duty plastic, or glazed ceramic prevent tipping.
- Drainage is key: Multiple holes and a layer of gravel at the base to avoid “wet feet.”
How to Plant Rhubarb in Containers
- Fill with rich, well-drained mix: Use half multi-purpose compost, half John Innes No.3 or similar loam, plus a scoop of well-rotted manure/compost and a handful of gritty sand or perlite for drainage.
- Plant so the crown is just below the surface—buds visible, but roots sunk deep.
- Firm in and water well.
- Mulch with compost or straw, keeping away from the buds.
Container Rhubarb Care
Watering
- Water thoroughly whenever the top 2–3cm of soil are dry—pots dry quicker than the open ground, especially in sun and wind.
- Avoid waterlogging by ensuring free-draining soil and holes stay clear.
Feeding
- Spring: Slow-release, balanced fertilizer or a monthly liquid tomato feed through the main growth season.
- Add a fresh mulch of compost each early spring.
Pruning and Harvesting
- Remove all seed stalks as soon as they appear—these sap strength from the plant.
- Don’t harvest in the first year. In year two, pick a few stalks at a time—never more than half the plant.
- Regular harvests from the third year onwards.
Winter Care
- Move pots to sheltered spots or bubble-wrap for frost protection in very cold regions.
- Avoid waterlogging by raising pots up on “pot feet” or bricks.
Troubleshooting
- Yellowing leaves: Check for waterlogging or nutrient deficiency.
- Tiny or weak stalks: May need a bigger pot, more feeding, or division if plants are old/crowded.
- No stalks emerging: Crown could be planted too deep, or rotted in wet soil.
Wrapping Up
With the right pot, mix, and a little care, rhubarb can be a surprising star of small gardens. Container-grown plants look ornamental, taste delicious, and bring a little countryside magic to even the smallest space.