Create your calendar
Method
Rel. frost
Last spring frost (0°C) 2 Apr Normal year · 20 years of data
Frost-free season 233 days 2 Apr – 21 Nov
Probability that frost is over

50% = Half of years are frost-free by this date. More about frost & season →

Custom date

Vegetables

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
14 – 28 Mar
5-7 wk
2 May
4 wk after
29 Mar
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
8 – 22 Mar
4-6 wk
19 Apr
2 wk after
29 Mar
1 wk before
Chili pepper
Capsicum annuum
Fleece
24 Feb – 24 Mar
8-12 wk
19 May
7 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
19 Jan – 2 Feb
5-7 wk
9 Mar
4 wk before
25 Mar
2 wk before
Cucumber
Cucumis sativus
Fleece
21 – 28 Apr
3-4 wk
19 May
7 wk after
Florence Fennel
Foeniculum vulgare
Fleece
14 – 21 Apr
4-5 wk
19 May
7 wk after
23 Apr
3 wk after
Butter bean
Phaseolus lunatus
Season too short
10 – 17 Apr
3-4 wk
8 May
5 wk after
Onion
Allium cepa (Cepa-gruppen)
8 Jan – 5 Feb
8-12 wk
2 Apr
Vid frost
15 Apr
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
15 Apr
1 wk after
Sweetcorn
Zea mays
Greenhouse
2 – 9 Apr
3-4 wk
30 Apr
4 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
4 – 11 Apr
3-4 wk
2 May
4 wk after
15 Apr
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
25 Mar
2 wk before
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
19 Jan – 2 Feb
5-7 wk
9 Mar
4 wk before
25 Mar
2 wk before
Potato
Solanum tuberosum
8 – 22 Apr
4-6 wk
20 May
7 wk after
10 Apr
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
19 Jan – 2 Feb
5-7 wk
9 Mar
4 wk before
29 Mar
1 wk before
Pumpkin
Cucurbita pepo
Fleece
21 – 28 Apr
3-4 wk
19 May
7 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
4 – 11 Apr
3-4 wk
2 May
4 wk after
15 Apr
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
8 – 22 Mar
4-6 wk
19 Apr
2 wk after
Lettuce
Lactuca sativa
26 Feb – 5 Mar
3-4 wk
26 Mar
1 wk before
29 Mar
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
12 – 26 Feb
4-6 wk
26 Mar
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
18 Feb – 4 Mar
2-4 wk
18 Mar
2 wk before
25 Mar
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
29 Mar
1 wk before
Spinach
Spinacia oleracea
18 – 25 Feb
3-4 wk
18 Mar
2 wk before
20 Mar
3 wk before
Sweet potato
Ipomoea batatas
20 Apr – 4 May
4-6 wk
1 Jun
8 wk after
Tomato
Solanum lycopersicum
25 Mar – 8 Apr
6-8 wk
20 May
7 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
22 Apr – 6 May
2-4 wk
20 May
7 wk after
13 May
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
8 – 22 Mar
4-6 wk
19 Apr
2 wk after
Pea
Pisum sativum
18 – 25 Feb
3-4 wk
18 Mar
2 wk before
29 Mar
1 wk before
Current date Soon Date passed

Herbs

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Basil
Ocimum basilicum
Greenhouse
19 Mar – 2 Apr
4-6 wk
30 Apr
4 wk after
Lemon balm
Melissa officinalis
22 Jan – 5 Feb
8-10 wk
2 Apr
Vid frost
27 Apr
3 wk after
Dill
Anethum graveolens
29 Mar
1 wk before
Chives
Allium schoenoprasum
12 – 26 Jan
6-8 wk
9 Mar
4 wk before
29 Mar
1 wk before
Spearmint
Mentha spicata
24 Dec – 21 Jan
8-12 wk
18 Mar
2 wk before
27 Apr
3 wk after
Coriander
Coriandrum sativum
15 Apr
1 wk after
Sage
Salvia officinalis
21 Feb – 7 Mar
8-10 wk
2 May
4 wk after
Thyme
Thymus vulgaris
8 – 22 Feb
8-10 wk
19 Apr
2 wk after
Oregano
Origanum vulgare
11 – 25 Feb
6-8 wk
8 Apr
1 wk after
27 Apr
3 wk after
Parsley
Petroselinum crispum
21 Jan – 4 Feb
6-8 wk
18 Mar
2 wk before
29 Mar
1 wk before
Rosemary
Salvia rosmarinus
24 Jan – 21 Feb
10-14 wk
2 May
4 wk after
Current date Soon Date passed

Annual flowers

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