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WEATHER
Your gardening weather
London, GB
9:51 pm,
January 20, 2025
4°C
overcast clouds
hardiness rATINGS
| RHS Hardiness Ratings | USDA Plant Hardiness Zones | Approximate Temperature Range (°C) |
|---|---|---|
| H1a H1b H1c |
13 12 11 |
>15°C 10 to 15°C 5 to 10°C |
| H2 | 10b | 1 to 5°C |
| H3 | 9b to 10a | -5 to 1°C |
| H4 | 8b to 9a | -10 to -5°C |
| H5 | 7b to 8a | -15 to -10°C |
| H6 | 6b and 7a | -20 to -15°C |
| H7 | 6a | Below -20°C |
POT SIZES
Square Top Pots
| Top Dimensions | Base Dimensions | Height | Volume |
|---|---|---|---|
| 10 cm x 10 cm (4 in x 4 in) | 8 cm x 8 cm (3 in x 3 in) | 10 cm (4 in) | 0.6 L |
| 15 cm x 15 cm (6 in x 6 in) | 12 cm x 12 cm (5 in x 5 in) | 15 cm (6 in) | 2 L |
| 20 cm x 20 cm (8 in x 8 in) | 15 cm x 15 cm (6 in x 6 in) | 20 cm (8 in) | 5 L |
| 30 cm x 30 cm (12 in x 12 in) | 25 cm x 25 cm (10 in x 10 in) | 30 cm (12 in) | 18 L |
| 40 cm x 40 cm (16 in x 16 in) | 35 cm x 35 cm (14 in x 14 in) | 40 cm (16 in) | 56 L |
| 50 cm x 50 cm (20 in x 20 in) | 45 cm x 45 cm (18 in x 18 in) | 50 cm (20 in) | 113 L |
| 60 cm x 60 cm (24 in x 24 in) | 55 cm x 55 cm (22 in x 22 in) | 60 cm (24 in) | 216 L |
Round Top Pots
| Top Diameter | Base Diameter | Height | Volume |
|---|---|---|---|
| 10 cm (4 in) | 8 cm (3 in) | 10 cm (4 in) | 0.5 L |
| 15 cm (6 in) | 12 cm (5 in) | 15 cm (6 in) | 1.7 L |
| 20 cm (8 in) | 15 cm (6 in) | 18 cm (7 in) | 3.2 L |
| 30 cm (12 in) | 25 cm (10 in) | 30 cm (12 in) | 14.7 L |
| 40 cm (16 in) | 35 cm (14 in) | 40 cm (16 in) | 37 L |
| 50 cm (20 in) | 45 cm (18 in) | 50 cm (20 in) | 88 L |
| 60 cm (24 in) | 55 cm (22 in) | 60 cm (24 in) | 181 L |
Notes on Sizes
- Square Pots: Great for plants needing even root distribution (e.g., vegetables or roses).
- Round Pots: Ideal for taprooted plants (e.g., trees or larger shrubs).
- Extra-Large Pots: Use for ornamental arrangements or permanent planting solutions like fruit trees.
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