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Method
Rel. frost
Last spring frost (0°C) 14 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 111 days 14 Jun – 3 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)
26 Apr – 10 May
11 Jun
5-7 wk
14 Jun
16 Jul
0 wk
15 Jun
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
3 – 17 May
23 Jun
4-6 wk
14 Jun
21 Jul
0 wk
15 Jun
11 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
28 Mar – 25 Apr
8-12 wk
20 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
26 Apr – 10 May
6 Jun
5-7 wk
14 Jun
11 Jul
0 wk
14 Jun
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
23 – 30 May
3-4 wk
20 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
23 – 30 May
3 Jun
4-5 wk
27 Jun
1 Jul
2 wk after
9 Jul
4 wk after
Butter bean
Phaseolus lunatus
Season too short
25 Jun – 2 Jul
3-4 wk
23 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
22 Mar – 19 Apr
26 Mar
8-12 wk
14 Jun
0 wk
14 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Season too short
5 Jun
10 Jun
1 wk before
5 Jun
1 wk before
Maize
Zea mays
Season too short
17 – 24 May
3-4 wk
14 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
19 – 26 May
30 Jun
3-4 wk
16 Jun
21 Jul
0 wk
27 Jun
11 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
14 Jun
1 Jul
0 wk
14 Jun
21 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
26 Apr – 10 May
6 Jun
5-7 wk
14 Jun
11 Jul
0 wk
14 Jun
1 Jul
0 wk
Potato
Solanum tuberosum
Greenhouse
30 Apr – 14 May
21 May
4-6 wk
11 Jun
18 Jun
0 wk
11 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
26 Apr – 10 May
16 Jun
5-7 wk
14 Jun
21 Jul
0 wk
15 Jun
11 Jul
0 wk
Pumpkin
Cucurbita pepo
Greenhouse
23 – 30 May
26 May
3-4 wk
20 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
19 – 26 May
3-4 wk
16 Jun
0 wk
27 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
3 – 17 May
18 Jun
4-6 wk
14 Jun
16 Jul
0 wk
Lettuce
Lactuca sativa
17 – 24 May
5 Jul
3-4 wk
14 Jun
26 Jul
0 wk
15 Jun
16 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
3 – 17 May
18 Jun
4-6 wk
14 Jun
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Greenhouse
1 – 15 May
28 May
2-4 wk
29 May
11 Jun
2 wk before
29 May
1 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Season too short
5 Jun
10 Jun
1 wk before
5 Jun
1 wk before
Spinach
Spinacia oleracea
17 – 24 May
20 Jul
3-4 wk
14 Jun
10 Aug
0 wk
11 Jun
31 Jul
0 wk
Sweet potato
Ipomoea batatas
9 – 23 Jul
4-6 wk
20 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
19 Apr – 3 May
6-8 wk
14 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
17 – 31 May
28 May
2-4 wk
14 Jun
0 wk
27 Jun
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
3 – 17 May
18 Jun
4-6 wk
14 Jun
16 Jul
0 wk
Garden pea
Pisum sativum
17 – 24 May
20 Jun
3-4 wk
14 Jun
11 Jul
0 wk
15 Jun
1 Jul
0 wk

Herbs

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