Our size guide applies to both plants and planters.
The diameter range for each is based on the following:
Plants: the total nursery pot diameter (exterior measurement)
Planters: the opening diameter (interior measurement)

SIZE

DENOTED AS

DIAMETER RANGE

EXTRA SMALL

XS

12 - 16cm

SMALL

S

17 -20cm

MEDIUM

M

21 - 29cm

LARGE

L

30 - 39cm

EXTRA LARGE

XL

40 - 50cm


GOLDEN RULES
Plants: The stated height for any given plant is from the ground up, so will always include the nursery pot.
Plant & Planter Fit: To find a planter for your chosen plant, start with the corresponding size category, e.g. plant size S - go to Small (S) planters.  
Example 1
your chosen plant size states M | 60 | 21. This is a Medium size (M) with a height of 60cm and a nursery pot diameter of 21cm.
Go to Planters size category: Medium [21 - 29cm].
You will need a minimum planter opening diameter size of 22cm.
Example 2: your chosen plant has a nursery pot diameter of 29cm. Though this falls within our Medium range (21-29cm), you will need to look at 30cm + planters - taking you into the Large Planters category [30 - 39cm].

Plant people size guide