When to plant: perennials
by Rhiannon James
credit: Morgaine
If you’re confused about when to plant perennials, fear not, our chart will tell you when to get digging and when to expect blooms!
Table labels
P - planting time
F- flowering time
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
Acanthus | P | P | P | F | F | P | P | P | ||||
Achillea | P | P | P | F | F | F | F | P | P | P | ||
Aconitum | P | P | P | F | F | F | P | P | P | |||
Agapanthus | P | F | F | F | ||||||||
Alstroemeria | P | F | F | F | F | |||||||
Anaphalis | P | P | P | P | F | F | F P | P | P | P | ||
Armeria | P | P | P | P | F | F | F | P | P | P | P | |
Aruncus | P | P | P | F | P | P | P | |||||
Aster | P | P | P | F | F | F P | P | P | ||||
Bergenia | P | P | F P | F | F | P | P | P | ||||
Campanula | F | F | F | P | P | |||||||
Coreopsis | P | P | P | F | F | F | P | P | P | |||
Delphinium | P | P | P | F | F | P | P | P | P | |||
Dianthus | P | F | F | F P | F P | P | ||||||
Dicentra | P | P | P | F | F | P | P | P | ||||
Digitalis | P | P | P | P | F | F | P | P | P | |||
Doronicum | P | P | P | F | F | P | P | P | ||||
Echinacea | P | P | P | F | F | F | P | P | P | |||
Eremurus | F | F | P | P | ||||||||
Eryngium | P | P | P | P | F | F | F | P | P | P | ||
Euphorbia | P | P | P | F P | F | F | P | P | P | P | ||
Geranium | P | P | P | F | F | F | P | P | P | P | ||
Geum | P | P | P | F | F | F | P | P | P | P | ||
Helenium | P | P | P | P | F | F | F | P | P | P | ||
Helleborus | F | F | F | P | ||||||||
Hemerocallis | P | P | P | P | F | F | P | P | P | |||
Hosta | P | P | P | F | F | P | P | P | ||||
Incarvillea | P | P | F | F | F | |||||||
Inula | P | P | P | F | F | P | P | P | ||||
Kniphofia | P | F | F | F | F P | F P | ||||||
Lupinus | P | P | P | F | F | F | P | P | P | |||
Lychnis | P | P | P | F | F | F | P | P | P | |||
Lysimachia | P | P | P | F | F | P | P | P | ||||
Lythrum | P | P | P | F | F | F | F | P | ||||
Macleaya | P | P | P | F | F | F | P | P | P | |||
Malva | P | P | P | F | F | F | F | P | P | P | ||
Mimulus | P | P | P | F | F | F | F | |||||
Monarda | P | P | F | F | F | F | P | |||||
Myosotis | F | F | F | P | P | |||||||
Nepeta | P | P | P | F | F | F | F | F | P | P | P | |
Oenothera | P | P | P | P | F | F | F | P | P | P | ||
Paeonia | P | P | P | F | F | P | P | P | P | |||
Papaver | P | P | F | F | P | |||||||
Penstemon | P | P | F | F | F | |||||||
Phlomis | P | P | P | P | F | F | P | P | P | |||
Phlox | P | P | F | F | F | P | ||||||
Polemonium | P | P | P | F | F | F | F | P | P | P | ||
Primula | P | P | P | F | F | F | P | P | P | |||
Prunella | P | F | F | F | F | F | F | |||||
Pulmonaria | P | P | P | F | F | P | P | P | ||||
Pulsatilla | F | F | P | |||||||||
Pyrethrum (Chrysanthemum) | P | F | F | |||||||||
Romneya | P | P | F | F | F | |||||||
Rudbeckia | P | P | F | F | F | P | ||||||
Saxifraga | P F | F | F | F | F P | P | ||||||
Scabiosa | P | P | F | F | F | F | ||||||
Sedum | P | P | P | P | F | F P | P | P | ||||
Sempervivum | P | P | P | F | P | P | P | P | ||||
Senecio | P | P | P | P | F | F | F | P | P | P | ||
Sisyrinchium | P | P | P | F | F | P | P | P | P | |||
Soldanella | F | F | P | P | ||||||||
Solidago | P | P | P | F | F | P | P | P | ||||
Thalictrum | P | P | F | F | F | F | ||||||
Trollius | P | F | F | P | ||||||||
Verbascum | P | P | F | F | F | P | ||||||
Verbena | P | P | P | P | F | F | F | F | F | P | P | |
Veronica | P | P | P | P | F | F | F | P | P | P |
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Cambridge Cycling Gardener
23 Apr 13 05:56
If you fail to plant at the correct time, could you prevent the perennial from flowering on time?
Rhiannon
25 Apr 13 08:02
Hi there, the flowering time of mature pot-grown plants should not be affected. Plants will need a bit of extra care e.g. if you plant in the summer, it’s important to keep an eye on the watering but new plants do require some extra attention in the first year anyway. Hope that helps!