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Method
Rel. frost
Last spring frost (0°C) 2 Jun Frost 3 of 4 years · 20 years of data
Frost-free season 71 days 2 Jun – 12 Aug
Probability that frost is over

25% = 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)
14 – 28 Apr
14 Jun
5-7 wk
2 Jun
19 Jul
0 wk
6 Jun
9 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
21 Apr – 5 May
26 Jun
4-6 wk
2 Jun
24 Jul
0 wk
6 Jun
14 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
16 Mar – 13 Apr
8-12 wk
8 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
14 – 28 Apr
9 Jun
5-7 wk
2 Jun
14 Jul
0 wk
2 Jun
4 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
11 – 18 May
19 May
3-4 wk
8 Jun
9 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
11 – 18 May
22 May
4-5 wk
15 Jun
19 Jun
2 wk after
7 Jul
5 wk after
Butter bean
Phaseolus lunatus
Season too short
13 – 20 Jun
3-4 wk
11 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Greenhouse
10 Mar – 7 Apr
30 Mar
8-12 wk
2 Jun
0 wk
2 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
6 Jun
1 wk after
6 Jun
1 wk after
Maize
Zea mays
Greenhouse
5 – 12 May
9 May
3-4 wk
2 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
7 – 14 May
18 Jun
3-4 wk
4 Jun
9 Jul
0 wk
23 Jun
29 Jun
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
2 Jun
1 Jul
0 wk
2 Jun
21 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
14 – 28 Apr
9 Jun
5-7 wk
2 Jun
14 Jul
0 wk
2 Jun
4 Jul
0 wk
Potato
Solanum tuberosum
7 – 21 May
4-6 wk
18 Jun
2 wk after
18 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
14 – 28 Apr
16 Jun
5-7 wk
2 Jun
21 Jul
0 wk
6 Jun
11 Jul
1 wk after
Pumpkin
Cucurbita pepo
Fleece
18 – 25 May
24 May
3-4 wk
15 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
7 – 14 May
3-4 wk
4 Jun
0 wk
23 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
21 Apr – 5 May
21 Jun
4-6 wk
2 Jun
19 Jul
0 wk
Lettuce
Lactuca sativa
5 – 12 May
5 Jul
3-4 wk
2 Jun
26 Jul
0 wk
6 Jun
16 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
21 Apr – 5 May
21 Jun
4-6 wk
2 Jun
19 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
5 – 19 May
14 May
2-4 wk
2 Jun
0 wk
2 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
6 Jun
1 wk after
6 Jun
1 wk after
Spinach
Spinacia oleracea
5 – 12 May
23 Jul
3-4 wk
2 Jun
13 Aug
0 wk
29 May
3 Aug
1 wk before
Sweet potato
Ipomoea batatas
4 – 18 Jul
4-6 wk
15 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
7 – 21 Apr
18 Apr
6-8 wk
2 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
11 – 25 May
26 May
2-4 wk
8 Jun
9 Jun
1 wk after
7 Jul
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
21 Apr – 5 May
21 Jun
4-6 wk
2 Jun
19 Jul
0 wk
Garden pea
Pisum sativum
5 – 12 May
20 Jun
3-4 wk
2 Jun
11 Jul
0 wk
6 Jun
1 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
27 Apr – 11 May
25 May
4-6 wk
8 Jun
22 Jun
1 wk after
Lemon balm
Melissa officinalis
24 Mar – 7 Apr
16 May
8-10 wk
2 Jun
11 Jul
0 wk
7 Jul
5 wk after
Dill
Anethum graveolens
6 Jun
9 Jul
1 wk after
Wild chives
Allium schoenoprasum
7 – 21 Apr
2 Jun
6-8 wk
2 Jun
14 Jul
0 wk
6 Jun
4 Jul
1 wk after
Spearmint
Mentha spicata
10 Mar – 7 Apr
19 May
8-12 wk
2 Jun
14 Jul
0 wk
7 Jul
5 wk after
Coriander
Coriandrum sativum
2 Jun
29 Jul
0 wk
23 Jun
19 Jul
3 wk after
Garden sage
Salvia officinalis
26 Mar – 9 Apr
4 May
8-10 wk
4 Jun
29 Jun
0 wk
Common thyme
Thymus vulgaris
24 Mar – 7 Apr
9 May
8-10 wk
2 Jun
4 Jul
0 wk
Oregano
Origanum vulgare
7 – 21 Apr
23 May
6-8 wk
2 Jun
4 Jul
0 wk
7 Jul
5 wk after
Parsley
Petroselinum crispum
7 – 21 Apr
23 May
6-8 wk
2 Jun
4 Jul
0 wk
6 Jun
24 Jun
1 wk after
Rosemary
Salvia rosmarinus
26 Feb – 26 Mar
15 Mar
10-14 wk
4 Jun
0 wk

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
11 – 18 May
1 Jun
3-4 wk
8 Jun
22 Jun
1 wk after
Cornflower
Centaurea cyanus
2 Jun
14 Jul
0 wk
6 Jun
4 Jul
1 wk after
Statice
Limonium sinuatum
Fleece
30 Mar – 13 Apr
21 Apr
8-10 wk
8 Jun
16 Jun
1 wk after
Sweet William
Dianthus barbatus
7 – 21 Apr
6-8 wk
2 Jun
0 wk
18 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
13 – 27 Apr
5 May
6-8 wk
8 Jun
16 Jun
1 wk after
31 Jul
8 wk after
Pinnate dahlia
Dahlia × pinnata
18 Apr – 2 May
1 May
6-8 wk
13 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
28 Apr – 26 May
23 May
4-8 wk
23 Jun
3 wk after
23 Jun
3 wk after
Foxglove
Digitalis purpurea
24 Mar – 7 Apr
8-10 wk
2 Jun
0 wk
23 Jun
3 wk after
Busy lizzie
Impatiens walleriana
11 Apr – 9 May
20 May
8-12 wk
4 Jul
15 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
20 Apr – 4 May
4 May
6-8 wk
15 Jun
15 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
4 – 18 May
4-6 wk
15 Jun
2 wk after
Chinese lantern
Physalis alkekengi
26 Mar – 9 Apr
4 Apr
8-10 wk
4 Jun
0 wk
Love in a mist
Nigella damascena
2 Jun
26 Jun
0 wk
6 Jun
16 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Fleece
13 – 27 Apr
25 Apr
6-8 wk
8 Jun
1 wk after
31 Jul
8 wk after
Purple-top vervain
Verbena bonariensis
12 Mar – 9 Apr
4 Apr
8-12 wk
4 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
10 Mar – 7 Apr
20 Mar
8-12 wk
2 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
16 Mar – 13 Apr
17 Apr
8-12 wk
8 Jun
12 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
13 – 27 Apr
1 May
6-8 wk
8 Jun
12 Jun
1 wk after
Corn poppy
Papaver rhoeas
2 Jun
11 Jul
0 wk
6 Jun
1 Jul
1 wk after
Snapdragon
Antirrhinum majus
10 Mar – 7 Apr
6 May
8-12 wk
2 Jun
1 Jul
0 wk
18 Jun
21 Jun
2 wk after
Flossflower
Ageratum houstonianum
Fleece
6 – 20 Apr
1 May
8-10 wk
15 Jun
26 Jun
2 wk after
Sweet pea
Lathyrus odoratus
7 – 28 Apr
30 May
5-8 wk
2 Jun
4 Jul
0 wk
Stock
Matthiola incana
7 – 21 Apr
30 May
6-8 wk
2 Jun
11 Jul
0 wk
23 Jun
1 Jul
3 wk after
Wormwood
Artemisia absinthium
7 – 21 Apr
3 May
6-8 wk
2 Jun
14 Jun
0 wk
23 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
27 Apr – 11 May
10 May
4-6 wk
8 Jun
1 wk after
Garden pansy
Viola × wittrockiana
24 Mar – 7 Apr
19 May
8-10 wk
2 Jun
14 Jul
0 wk
18 Jun
4 Jul
2 wk after
Petunia
Petunia
Fleece
16 Mar – 13 Apr
21 Apr
8-12 wk
8 Jun
16 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
9 – 23 Apr
18 Apr
6-8 wk
4 Jun
0 wk
21 Jul
7 wk after
Common zinnia
Zinnia elegans
Fleece
27 Apr – 11 May
25 May
4-6 wk
8 Jun
22 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
4 – 18 May
1 Jun
3-5 wk
8 Jun
22 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
27 Apr – 11 May
23 May
4-6 wk
8 Jun
20 Jun
1 wk after
7 Jul
5 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
23 Mar – 20 Apr
17 May
8-12 wk
15 Jun
12 Jul
2 wk after
Bee balm
Monarda didyma
10 Mar – 7 Apr
16 Apr
8-12 wk
2 Jun
11 Jun
0 wk
7 Jul
5 wk after
Yarrow
Achillea millefolium
7 – 21 Apr
6-8 wk
2 Jun
0 wk
23 Jun
3 wk after
Safflower
Carthamus tinctorius
2 Jun
14 Jun
0 wk
6 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
7 – 21 Apr
23 May
6-8 wk
2 Jun
4 Jul
0 wk
15 May
24 Jun
3 wk before
Bishop's flower
Ammi majus
21 Apr – 5 May
3 Jun
4-6 wk
2 Jun
1 Jul
0 wk
23 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Season too short
16 – 30 Mar
22 Mar
10-12 wk
8 Jun
1 wk after
Sunflower
Helianthus annuus
18 – 25 May
23 May
3-4 wk
15 Jun
2 wk after
7 Jul
5 wk after
China aster
Callistephus chinensis
20 Apr – 4 May
12 May
6-8 wk
15 Jun
23 Jun
2 wk after
21 Jul
7 wk after
Annual phlox
Phlox drummondii
13 – 27 Apr
4 May
6-8 wk
8 Jun
15 Jun
1 wk after
21 Jul
7 wk after
Hollyhock
Alcea rosea
7 – 21 Apr
6-8 wk
2 Jun
0 wk
23 Jun
3 wk after
Alpine delphinium
Delphinium elatum
10 Mar – 7 Apr
16 Apr
8-12 wk
2 Jun
11 Jun
0 wk
7 Jul
5 wk after
African marigold
Tagetes erecta
20 Apr – 4 May
4 May
6-8 wk
15 Jun
15 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
9 – 23 Apr
2 May
6-8 wk
4 Jun
13 Jun
0 wk
21 Jul
7 wk after
Wood sage
Salvia nemorosa
24 Mar – 7 Apr
6 Apr
8-10 wk
2 Jun
0 wk
7 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
30 Mar – 27 Apr
11 May
6-10 wk
8 Jun
22 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
2 Jun
5 Jul
0 wk
6 Jun
25 Jun
1 wk after
Painted tongue
Salpiglossis sinuata
Fleece
30 Mar – 13 Apr
24 Apr
8-10 wk
8 Jun
19 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
7 – 21 Apr
3 May
6-8 wk
2 Jun
14 Jun
0 wk
23 Jun
3 wk after