Create your calendar
Method
Rel. frost
Last spring frost (0°C) 27 Apr Frost 9 of 10 years · 20 years of data
Frost-free season 158 days 27 Apr – 2 Oct
Probability that frost is over

10% = Half of years are frost-free by this date. More about frost & season →

Custom date

Vegetables

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
9 – 23 Mar
10 Jun
5-7 wk
27 Apr
15 Jul
0 wk
28 Apr
5 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
16 – 30 Mar
22 Jun
4-6 wk
27 Apr
20 Jul
0 wk
28 Apr
10 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
13 Feb – 13 Mar
8-12 wk
8 May
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
9 – 23 Mar
5 Jun
5-7 wk
27 Apr
10 Jul
0 wk
27 Apr
30 Jun
0 wk
Garden cucumber
Cucumis sativus
Season too short
10 – 17 Apr
3-4 wk
8 May
2 wk after
Florence Fennel
Foeniculum vulgare
26 Apr – 3 May
2 Jun
4-5 wk
31 May
30 Jun
5 wk after
9 Jun
20 Jun
6 wk after
Butter bean
Phaseolus lunatus
Season too short
10 – 17 May
3-4 wk
7 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
2 Feb – 2 Mar
8 Mar
8-12 wk
27 Apr
3 May
0 wk
10 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
28 Apr
23 May
0 wk
28 Apr
13 May
0 wk
Maize
Zea mays
Season too short
3 – 10 Apr
3-4 wk
1 May
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
5 – 12 Apr
29 Jun
3-4 wk
3 May
20 Jul
1 wk after
10 May
10 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
27 Apr
30 Jun
0 wk
27 Apr
20 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
9 – 23 Mar
5 Jun
5-7 wk
27 Apr
10 Jul
0 wk
27 Apr
30 Jun
0 wk
Potato
Solanum tuberosum
26 Mar – 9 Apr
28 Apr
4-6 wk
7 May
26 May
1 wk after
7 May
16 May
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
9 – 23 Mar
15 Jun
5-7 wk
27 Apr
20 Jul
0 wk
28 Apr
10 Jul
0 wk
Pumpkin
Cucurbita pepo
Greenhouse
10 – 17 Apr
26 May
3-4 wk
8 May
16 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
5 – 12 Apr
25 Apr
3-4 wk
3 May
16 May
1 wk after
10 May
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
16 – 30 Mar
17 Jun
4-6 wk
27 Apr
15 Jul
0 wk
Lettuce
Lactuca sativa
30 Mar – 6 Apr
4 Jul
3-4 wk
27 Apr
25 Jul
0 wk
28 Apr
15 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
16 – 30 Mar
17 Jun
4-6 wk
27 Apr
15 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
30 Mar – 13 Apr
11 May
2-4 wk
27 Apr
25 May
0 wk
27 Apr
15 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
28 Apr
23 May
0 wk
28 Apr
13 May
0 wk
Spinach
Spinacia oleracea
30 Mar – 6 Apr
19 Jul
3-4 wk
27 Apr
9 Aug
0 wk
24 Apr
30 Jul
0 wk
Sweet potato
Ipomoea batatas
22 May – 5 Jun
4-6 wk
3 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
6 – 20 Mar
6-8 wk
1 May
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
3 – 17 Apr
28 May
2-4 wk
1 May
11 Jun
1 wk after
10 May
1 Jun
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
16 – 30 Mar
17 Jun
4-6 wk
27 Apr
15 Jul
0 wk
Garden pea
Pisum sativum
30 Mar – 6 Apr
19 Jun
3-4 wk
27 Apr
10 Jul
0 wk
28 Apr
30 Jun
0 wk

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
Greenhouse
27 Mar – 10 Apr
4 May
4-6 wk
8 May
1 Jun
2 wk after
Lemon balm
Melissa officinalis
16 Feb – 2 Mar
15 May
8-10 wk
27 Apr
10 Jul
0 wk
22 May
30 Jun
4 wk after
Dill
Anethum graveolens
28 Apr
20 Jul
0 wk
Wild chives
Allium schoenoprasum
Season too short
2 – 16 Mar
25 May
6-8 wk
27 Apr
6 Jul
0 wk
18 Apr
26 Jun
1 wk before
Spearmint
Mentha spicata
2 Feb – 2 Mar
15 May
8-12 wk
27 Apr
10 Jul
0 wk
22 May
30 Jun
4 wk after
Coriander
Coriandrum sativum
27 Apr
9 Aug
0 wk
10 May
30 Jul
2 wk after
Garden sage
Salvia officinalis
22 Feb – 8 Mar
30 Apr
8-10 wk
3 May
25 Jun
1 wk after
Common thyme
Thymus vulgaris
16 Feb – 2 Mar
5 May
8-10 wk
27 Apr
30 Jun
0 wk
Oregano
Origanum vulgare
2 – 16 Mar
19 May
6-8 wk
27 Apr
30 Jun
0 wk
22 May
20 Jun
4 wk after
Parsley
Petroselinum crispum
2 – 16 Mar
19 May
6-8 wk
27 Apr
30 Jun
0 wk
28 Apr
20 Jun
0 wk
Rosemary
Salvia rosmarinus
25 Jan – 22 Feb
1 Apr
10-14 wk
3 May
10 Jun
1 wk after

Annual flowers

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Morning glory
Ipomoea tricolor
Greenhouse
10 – 17 Apr
11 May
3-4 wk
8 May
1 Jun
2 wk after
Cornflower
Centaurea cyanus
27 Apr
10 Jul
0 wk
28 Apr
30 Jun
0 wk
Statice
Limonium sinuatum
Fleece
27 Feb – 13 Mar
31 Mar
8-10 wk
8 May
26 May
2 wk after
Sweet William
Dianthus barbatus
2 – 16 Mar
6-8 wk
27 Apr
0 wk
7 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
13 – 27 Mar
14 Apr
6-8 wk
8 May
26 May
2 wk after
16 Jun
7 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
8 – 22 Mar
21 Apr
6-8 wk
3 May
2 Jun
1 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
15 Mar – 12 Apr
5 May
4-8 wk
10 May
2 Jun
2 wk after
10 May
23 May
2 wk after
Foxglove
Digitalis purpurea
16 Feb – 2 Mar
8-10 wk
27 Apr
0 wk
10 May
2 wk after
Busy lizzie
Impatiens walleriana
Fleece
22 Feb – 22 Mar
22 May
8-12 wk
17 May
17 Jul
3 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
13 – 27 Mar
24 Apr
6-8 wk
8 May
5 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
5 – 19 Apr
4-6 wk
17 May
3 wk after
Chinese lantern
Physalis alkekengi
22 Feb – 8 Mar
15 Apr
8-10 wk
3 May
10 Jun
1 wk after
Love in a mist
Nigella damascena
27 Apr
25 Jun
0 wk
28 Apr
15 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
13 – 27 Mar
4 Apr
6-8 wk
8 May
16 May
2 wk after
16 Jun
7 wk after
Purple-top vervain
Verbena bonariensis
8 Feb – 8 Mar
15 Apr
8-12 wk
3 May
10 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
13 Feb – 13 Mar
16 Mar
8-12 wk
8 May
11 May
2 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
13 Feb – 13 Mar
27 Mar
8-12 wk
8 May
22 May
2 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
13 – 27 Mar
10 Apr
6-8 wk
8 May
22 May
2 wk after
Corn poppy
Papaver rhoeas
27 Apr
10 Jul
0 wk
28 Apr
30 Jun
0 wk
Snapdragon
Antirrhinum majus
2 Feb – 2 Mar
5 May
8-12 wk
27 Apr
30 Jun
0 wk
7 May
20 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
8 – 22 Mar
10 Apr
8-10 wk
17 May
5 Jun
3 wk after
Sweet pea
Lathyrus odoratus
2 – 23 Mar
26 May
5-8 wk
27 Apr
30 Jun
0 wk
Stock
Matthiola incana
2 – 16 Mar
29 May
6-8 wk
27 Apr
10 Jul
0 wk
10 May
30 Jun
2 wk after
Wormwood
Artemisia absinthium
2 – 16 Mar
29 Apr
6-8 wk
27 Apr
10 Jun
0 wk
10 May
31 May
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
27 Mar – 10 Apr
19 Apr
4-6 wk
8 May
17 May
2 wk after
Garden pansy
Viola × wittrockiana
16 Feb – 2 Mar
15 May
8-10 wk
27 Apr
10 Jul
0 wk
7 May
30 Jun
1 wk after
Petunia
Petunia
Fleece
13 Feb – 13 Mar
31 Mar
8-12 wk
8 May
26 May
2 wk after
Sweet Scabious
Scabiosa atropurpurea
8 – 22 Mar
29 Apr
6-8 wk
3 May
10 Jun
1 wk after
9 Jun
6 wk after
Common zinnia
Zinnia elegans
Fleece
27 Mar – 10 Apr
4 May
4-6 wk
8 May
1 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
3 – 17 Apr
11 May
3-5 wk
8 May
1 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
27 Mar – 10 Apr
5 May
4-6 wk
8 May
2 Jun
2 wk after
22 May
23 May
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
22 Feb – 22 Mar
26 Apr
8-12 wk
17 May
21 Jun
3 wk after
Bee balm
Monarda didyma
2 Feb – 2 Mar
15 Apr
8-12 wk
27 Apr
10 Jun
0 wk
22 May
31 May
4 wk after
Yarrow
Achillea millefolium
2 – 16 Mar
30 Mar
6-8 wk
27 Apr
11 May
0 wk
10 May
2 wk after
Safflower
Carthamus tinctorius
27 Apr
10 Jun
0 wk
28 Apr
31 May
0 wk
Iceland poppy
Papaver nudicaule
Season too short
2 – 16 Mar
15 May
6-8 wk
27 Apr
26 Jun
0 wk
11 Apr
16 Jun
2 wk before
Bishop's flower
Ammi majus
16 – 30 Mar
2 Jun
4-6 wk
27 Apr
30 Jun
0 wk
10 May
20 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
13 – 27 Feb
4 Mar
10-12 wk
8 May
13 May
2 wk after
Sunflower
Helianthus annuus
19 – 26 Apr
9 Jun
3-4 wk
17 May
30 Jun
3 wk after
22 May
20 Jun
4 wk after
China aster
Callistephus chinensis
22 Mar – 5 Apr
29 May
6-8 wk
17 May
10 Jul
3 wk after
9 Jun
30 Jun
6 wk after
Annual phlox
Phlox drummondii
13 – 27 Mar
14 Apr
6-8 wk
8 May
26 May
2 wk after
9 Jun
6 wk after
Hollyhock
Alcea rosea
2 – 16 Mar
6-8 wk
27 Apr
0 wk
10 May
2 wk after
Alpine delphinium
Delphinium elatum
2 Feb – 2 Mar
15 Apr
8-12 wk
27 Apr
10 Jun
0 wk
22 May
31 May
4 wk after
African marigold
Tagetes erecta
Fleece
13 – 27 Mar
24 Apr
6-8 wk
8 May
5 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
8 – 22 Mar
19 May
6-8 wk
3 May
30 Jun
1 wk after
9 Jun
20 Jun
6 wk after
Wood sage
Salvia nemorosa
16 Feb – 2 Mar
5 Apr
8-10 wk
27 Apr
31 May
0 wk
22 May
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
27 Feb – 27 Mar
20 Apr
6-10 wk
8 May
1 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
27 Apr
10 Jul
0 wk
28 Apr
30 Jun
0 wk
Painted tongue
Salpiglossis sinuata
8 – 22 Mar
5 May
8-10 wk
17 May
30 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
Season too short
2 – 16 Mar
25 Apr
6-8 wk
27 Apr
6 Jun
0 wk
27 Apr
27 May
0 wk