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When to plant: perennials

by Rhiannon James

perennials_header

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

 

 

 

2 Responses to “When to plant: perennials”

  1. Cambridge Cycling Gardener

    If you fail to plant at the correct time, could you prevent the perennial from flowering on time?

  2. Rhiannon

    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!

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