This table shows the relative time of blooming of perennials. Because actual bloom time and length of bloom vary from place to place and even year to year, it is only a rough estimate, to be used for an initial trial. If local tables of bloom time are available, use them to refine this one. By keeping notes of bloom time in your garden, you can make a personal bloom time table that will be more accurate than any published table.
Perennial |
J |
F |
M |
A |
M |
J |
J |
A |
S |
O |
N |
D |
Helleborus niger |
X |
X |
X |
X |
|
|
|
|
|
|
|
|
Helleborus lividus corsicus |
|
X |
X |
|
|
|
|
|
|
|
|
|
Trillium grandiflorum |
|
|
X |
X |
|
|
|
|
|
|
|
|
Euphorbia myrsinites |
|
|
X |
X |
X |
|
|
|
|
|
|
|
Helleborus orientalis |
|
|
X |
X |
X |
|
|
|
|
|
|
|
Lamiastrum galeobdolon |
|
|
|
X |
|
|
|
|
|
|
|
|
Phlox subulata |
|
|
|
X |
|
|
|
|
|
|
|
|
Aurinia saxatilis |
|
|
|
X |
X |
|
|
|
|
|
|
|
Bergenia cordifolia |
|
|
|
X |
X |
|
|
|
|
|
|
|
Brunnera macrophylla |
|
|
|
X |
X |
|
|
|
|
|
|
|
Euphorbia epithymoides |
|
|
|
X |
X |
|
|
|
|
|
|
|
Iris, bearded |
|
|
|
X |
X |
|
|
|
|
|
|
|
Mertensia virginica |
|
|
|
X |
X |
|
|
|
|
|
|
|
Oenothera berlandieri |
|
|
|
X |
X |
|
|
|
|
|
|
|
Oenothera missouriensis |
|
|
|
X |
X |
|
|
|
|
|
|
|
Oenothera speciosa |
|
|
|
X |
X |
|
|
|
|
|
|
|
Primula sieboldii |
|
|
|
X |
X |
|
|
|
|
|
|
|
Primula vulgaris |
|
|
|
X |
X |
|
|
|
|
|
|
|
Primula x polyantha |
|
|
|
X |
X |
|
|
|
|
|
|
|
Pulmonaria angustifolia |
|
|
|
X |
X |
|
|
|
|
|
|
|
Pulmonaria saccharata |
|
|
|
X |
X |
|
|
|
|
|
|
|
Dicentra formosa |
|
|
|
X |
X |
X |
|
|
|
|
|
|
Caltha palustris |
|
|
|
|
X |
|
|
|
|
|
|
|
Doronicum cordatum |
|
|
|
|
X |
|
|
|
|
|
|
|
Perennial |
J |
F |
M |
A |
M |
J |
J |
A |
S |
O |
N |
D |
Iris, Pacific Coast |
|
|
|
|
X |
|
|
|
|
|
|
|
Aquilegia |
|
|
|
|
X |
X |
|
|
|
|
|
|
Armeria maritima |
|
|
|
|
X |
X |
|
|
|
|
|
|
Dianthus plumarius |
|
|
|
|
X |
X |
|
|
|
|
|
|
Euphorbia cyparissias |
|
|
|
|
X |
X |
|
|
|
|
|
|
Iris pseudacorus |
|
|
|
|
X |
X |
|
|
|
|
|
|
Paeonia hybrids |
|
|
|
|
X |
X |
|
|
|
|
|
|
Polygonatum commutatum |
|
|
|
|
X |
X |
|
|
|
|
|
|
Primula japonica |
|
|
|
|
X |
X |
|
|
|
|
|
|
Stachys grandiflora |
|
|
|
|
X |
X |
|
|
|
|
|
|
Trollius europaeus |
|
|
|
|
X |
X |
|
|
|
|
|
|
Acanthus mollis |
|
|
|
|
X |
X |
|
|
|
|
|
|
Amsonia tabernaemontana |
|
|
|
|
X |
X |
|
|
|
|
|
|
Baptisia australis |
|
|
|
|
X |
X |
|
|
|
|
|
|
Dicentra spectabilis |
|
|
|
|
X |
X |
|
|
|
|
|
|
Dictamnus albus |
|
|
|
|
X |
X |
|
|
|
|
|
|
Thalictrum aquilegifolium |
|
|
|
|
X |
X |
|
|
|
|
|
|
Geranium sanguineum |
|
|
|
|
X |
X |
X |
|
|
|
|
|
Geum hybrids |
|
|
|
|
X |
X |
X |
|
|
|
|
|
Dicentra eximia |
|
|
|
|
X |
X |
X |
X |
|
|
|
|
Hemerocallis hybrids |
|
|
|
|
X |
X |
X |
X |
X |
|
|
|
Dianthus deltoides |
|
|
|
|
|
X |
|
|
|
|
|
|
Filipendula vulgaris |
|
|
|
|
|
X |
|
|
|
|
|
|
Lupinus Russell hybrids |
|
|
|
|
|
X |
|
|
|
|
|
|
Perennial |
J |
F |
M |
A |
M |
J |
J |
A |
S |
O |
N |
D |
Papaver orientale |
|
|
|
|
|
X |
|
|
|
|
|
|
Salvia pratensis |
|
|
|
|
|
X |
|
|
|
|
|
|
Anchusa azurea |
|
|
|
|
|
X |
X |
|
|
|
|
|
Aruncus dioicus |
|
|
|
|
|
X |
X |
|
|
|
|
|
Asclepias tuberosa |
|
|
|
|
|
X |
X |
|
|
|
|
|
Astilbe |
|
|
|
|
|
X |
X |
|
|
|
|
|
Campanula glomerata |
|
|
|
|
|
X |
X |
|
|
|
|
|
Chrysanthemum coccineum |
|
|
|
|
|
X |
X |
|
|
|
|
|
Coreopsis grandiflora |
|
|
|
|
|
X |
X |
|
|
|
|
|
Crambe cordifolia |
|
|
|
|
|
X |
X |
|
|
|
|
|
Delphinium elatum |
|
|
|
|
|
X |
X |
|
|
|
|
|
Digitalis purpurea |
|
|
|
|
|
X |
X |
|
|
|
|
|
Filipendula rubra |
|
|
|
|
|
X |
X |
|
|
|
|
|
Filipendula ulmaria |
|
|
|
|
|
X |
X |
|
|
|
|
|
Heuchera sanguinea |
|
|
|
|
|
X |
X |
|
|
|
|
|
Iris kaempferi |
|
|
|
|
|
X |
X |
|
|
|
|
|
Iris sibirica |
|
|
|
|
|
X |
X |
|
|
|
|
|
Lychnis chalcedonica |
|
|
|
|
|
X |
X |
|
|
|
|
|
Lychnis coronaria |
|
|
|
|
|
X |
X |
|
|
|
|
|
Lychnis x haageana |
|
|
|
|
|
X |
X |
|
|
|
|
|
Lysimachia punctata |
|
|
|
|
|
X |
X |
|
|
|
|
|
Oenothera berlandieri |
|
|
|
|
|
X |
X |
|
|
|
|
|
Penstemon hartwegii |
|
|
|
|
|
X |
X |
|
|
|
|
|
Salvia x superba |
|
|
|
|
|
X |
X |
|
|
|
|
|
Perennial |
J |
F |
M |
A |
M |
J |
J |
A |
S |
O |
N |
D |
Thermopsis caroliniana |
|
|
|
|
|
X |
X |
|
|
|
|
|
Veronica incana |
|
|
|
|
|
X |
X |
|
|
|
|
|
Achillea |
|
|
|
|
|
X |
X |
X |
|
|
|
|
Alchemilla mollis |
|
|
|
|
|
X |
X |
X |
|
|
|
|
Campanula carpatica |
|
|
|
|
|
X |
X |
X |
|
|
|
|
Cimicifuga racemosa |
|
|
|
|
|
X |
X |
X |
|
|
|
|
Lysimachia nummularia |
|
|
|
|
|
X |
X |
X |
|
|
|
|
Monarda didyma |
|
|
|
|
|
X |
X |
X |
|
|
|
|
Scabiosa caucasica |
|
|
|
|
|
X |
X |
X |
|
|
|
|
Tradescantia virginiana |
|
|
|
|
|
X |
X |
X |
|
|
|
|
Veronica hybrids |
|
|
|
|
|
X |
X |
X |
|
|
|
|
Veronica latifolia |
|
|
|
|
|
X |
X |
X |
|
|
|
|
Campanula lactiflora |
|
|
|
|
|
X |
X |
X |
X |
|
|
|
Chrysanthemum x superbum |
|
|
|
|
|
X |
X |
X |
X |
|
|
|
Chrysogonum virginianum |
|
|
|
|
|
X |
X |
X |
X |
|
|
|
Coreopsis lanceolata |
|
|
|
|
|
X |
X |
X |
X |
|
|
|
Dianthus caryophyllus |
|
|
|
|
|
X |
X |
X |
X |
|
|
|
Dianthus x allwoodii |
|
|
|
|
|
X |
X |
X |
X |
|
|
|
Gaillardia x grandiflora |
|
|
|
|
|
X |
X |
X |
X |
|
|
|
Kniphofia uvaria |
|
|
|
|
|
X |
X |
X |
X |
|
|
|
Campanula persicifolia |
|
|
|
|
|
|
X |
|
|
|
|
|
Catananche caerulea |
|
|
|
|
|
|
X |
|
|
|
|
|
Gypsophila |
|
|
|
|
|
|
X |
|
|
|
|
|
Hosta sieboldiana |
|
|
|
|
|
|
X |
|
|
|
|
|
Perennial |
J |
F |
M |
A |
M |
J |
J |
A |
S |
O |
N |
D |
Hosta undulata |
|
|
|
|
|
|
X |
|
|
|
|
|
Anthemis tinctoria |
|
|
|
|
|
|
X |
X |
|
|
|
|
Agapanthus orientalis |
|
|
|
|
|
|
X |
X |
|
|
|
|
Belamcanda chinensis |
|
|
|
|
|
|
X |
X |
|
|
|
|
Chrysanthemum parthenium |
|
|
|
|
|
|
X |
X |
|
|
|
|
Echinacea purpurea |
|
|
|
|
|
|
X |
X |
|
|
|
|
Echinops exaltatus |
|
|
|
|
|
|
X |
X |
|
|
|
|
Euphorbia corollata |
|
|
|
|
|
|
X |
X |
|
|
|
|
Hosta ventricosa |
|
|
|
|
|
|
X |
X |
|
|
|
|
Liatris |
|
|
|
|
|
|
X |
X |
|
|
|
|
Lobelia cardinalis |
|
|
|
|
|
|
X |
X |
|
|
|
|
Lysimachia clethroides |
|
|
|
|
|
|
X |
X |
|
|
|
|
Lythrum salicaria |
|
|
|
|
|
|
X |
X |
|
|
|
|
Stachys byzantina |
|
|
|
|
|
|
X |
X |
|
|
|
|
Stachys officinalis |
|
|
|
|
|
|
X |
X |
|
|
|
|
Stokesia laevis |
|
|
|
|
|
|
X |
X |
|
|
|
|
Thalictrum rochebrunianum |
|
|
|
|
|
|
X |
X |
|
|
|
|
Verbascum olympicum |
|
|
|
|
|
|
X |
X |
|
|
|
|
Veronica longifolia |
|
|
|
|
|
|
X |
X |
|
|
|
|
Veronica spicata |
|
|
|
|
|
|
X |
X |
|
|
|
|
Campanula pyramidalis |
|
|
|
|
|
|
X |
X |
X |
|
|
|
Campanula rapunculoides |
|
|
|
|
|
|
X |
X |
X |
|
|
|
Helenium autumnale |
|
|
|
|
|
|
X |
X |
X |
|
|
|
Heliopsis helianthoides scabra |
|
|
|
|
|
|
X |
X |
X |
|
|
|
Perennial |
J |
F |
M |
A |
M |
J |
J |
A |
S |
O |
N |
D |
Hibiscus moscheutos |
|
|
|
|
|
|
X |
X |
X |
|
|
|
Phlox paniculata |
|
|
|
|
|
|
X |
X |
X |
|
|
|
Platycodon grandiflorus |
|
|
|
|
|
|
X |
X |
X |
|
|
|
Rudbeckia |
|
|
|
|
|
|
X |
X |
X |
|
|
|
Salvia azurea |
|
|
|
|
|
|
X |
X |
X |
|
|
|
Boltonia asteroides |
|
|
|
|
|
|
X |
X |
X |
X |
|
|
Hosta fortunei |
|
|
|
|
|
|
|
X |
|
|
|
|
Hosta decorata |
|
|
|
|
|
|
|
X |
|
|
|
|
Hosta lancifolia |
|
|
|
|
|
|
|
X |
|
|
|
|
Ligularia dentata |
|
|
|
|
|
|
|
X |
|
|
|
|
Solidago hybrids |
|
|
|
|
|
|
|
X |
|
|
|
|
Belamcanda flabellata |
|
|
|
|
|
|
|
X |
X |
|
|
|
Ceratostigma plumbaginoides |
|
|
|
|
|
|
|
X |
X |
|
|
|
Cimicifuga foetida |
|
|
|
|
|
|
|
X |
X |
|
|
|
Helianthus decapetalus |
|
|
|
|
|
|
|
X |
X |
|
|
|
Hosta plantaginea |
|
|
|
|
|
|
|
X |
X |
|
|
|
Sedum spectabile |
|
|
|
|
|
|
|
X |
X |
|
|
|
Anemone x hybrida |
|
|
|
|
|
|
|
X |
X |
X |
|
|
Aster |
|
|
|
|
|
|
|
X |
X |
X |
|
|
Cimicifuga americana |
|
|
|
|
|
|
|
X |
X |
X |
|
|
Cimicifuga dahurica |
|
|
|
|
|
|
|
X |
X |
X |
|
|
Chrysanthemum hybrids |
|
|
|
|
|
|
|
X |
X |
X |
X |
|
Hosta tardiflora |
|
|
|
|
|
|
|
|
X |
|
|
|