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Method
Rel. frost
Last spring frost (0°C) 3 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 121 days 3 Jun – 2 Oct
Probability that frost is over

90% = Half of years are frost-free by this date. More about frost & season →

Custom date
Note: This location has a shorter growing season. Plants marked with Fleece, Greenhouse or Season too short need extra protection or are difficult to grow here.

Vegetables

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
15 – 29 Apr
16 Jun
5-7 wk
3 Jun
21 Jul
0 wk
7 Jun
11 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
22 Apr – 6 May
28 Jun
4-6 wk
3 Jun
26 Jul
0 wk
7 Jun
16 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
26 Mar – 23 Apr
8-12 wk
18 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
15 – 29 Apr
11 Jun
5-7 wk
3 Jun
16 Jul
0 wk
3 Jun
6 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
21 – 28 May
3-4 wk
18 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
11 – 18 Jun
4-5 wk
16 Jul
6 wk after
22 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
23 – 30 Jun
3-4 wk
21 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
11 Mar – 8 Apr
1 Apr
8-12 wk
3 Jun
0 wk
24 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
7 Jun
16 Jun
1 wk after
7 Jun
1 wk after
Maize
Zea mays
Season too short
7 – 14 May
3-4 wk
4 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
14 – 21 May
5 Jul
3-4 wk
11 Jun
26 Jul
1 wk after
24 Jun
16 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
3 Jun
6 Jul
0 wk
3 Jun
26 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
15 – 29 Apr
11 Jun
5-7 wk
3 Jun
16 Jul
0 wk
3 Jun
6 Jul
0 wk
Potato
Solanum tuberosum
8 – 22 May
8 Jun
4-6 wk
19 Jun
6 Jul
2 wk after
19 Jun
26 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
15 – 29 Apr
21 Jun
5-7 wk
3 Jun
26 Jul
0 wk
7 Jun
16 Jul
1 wk after
Pumpkin
Cucurbita pepo
Greenhouse
21 – 28 May
29 May
3-4 wk
18 Jun
19 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
14 – 21 May
17 Jun
3-4 wk
11 Jun
8 Jul
1 wk after
24 Jun
28 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
22 Apr – 6 May
23 Jun
4-6 wk
3 Jun
21 Jul
0 wk
Lettuce
Lactuca sativa
6 – 13 May
10 Jul
3-4 wk
3 Jun
31 Jul
0 wk
7 Jun
21 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
22 Apr – 6 May
23 Jun
4-6 wk
3 Jun
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
6 – 20 May
2 Jun
2-4 wk
3 Jun
16 Jun
0 wk
3 Jun
6 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
7 Jun
16 Jun
1 wk after
7 Jun
1 wk after
Spinach
Spinacia oleracea
6 – 13 May
25 Jul
3-4 wk
3 Jun
15 Aug
0 wk
30 May
5 Aug
1 wk before
Sweet potato
Ipomoea batatas
5 – 19 Jul
4-6 wk
16 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Season too short
9 – 23 Apr
6-8 wk
4 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
7 – 21 May
31 May
2-4 wk
4 Jun
14 Jun
0 wk
24 Jun
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
22 Apr – 6 May
23 Jun
4-6 wk
3 Jun
21 Jul
0 wk
Garden pea
Pisum sativum
6 – 13 May
25 Jun
3-4 wk
3 Jun
16 Jul
0 wk
7 Jun
6 Jul
1 wk after

Herbs

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