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Method
Rel. frost
Last spring frost (0°C) 1 Jun Frost 3 of 4 years · 20 years of data
Frost-free season 79 days 1 Jun – 19 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)
13 – 27 Apr
11 Jun
5-7 wk
1 Jun
16 Jul
0 wk
2 Jun
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
20 Apr – 4 May
23 Jun
4-6 wk
1 Jun
21 Jul
0 wk
2 Jun
11 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
15 Mar – 12 Apr
8-12 wk
7 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
13 – 27 Apr
6 Jun
5-7 wk
1 Jun
11 Jul
0 wk
1 Jun
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
10 – 17 May
20 May
3-4 wk
7 Jun
10 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Greenhouse
3 – 10 May
29 May
4-5 wk
7 Jun
26 Jun
1 wk after
14 Jun
16 Jun
2 wk after
Butter bean
Phaseolus lunatus
Season too short
12 – 19 Jun
3-4 wk
10 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Greenhouse
9 Mar – 6 Apr
23 Mar
8-12 wk
1 Jun
0 wk
1 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
2 Jun
0 wk
2 Jun
0 wk
Maize
Zea mays
Greenhouse
4 – 11 May
10 May
3-4 wk
1 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
6 – 13 May
3 Jun
3-4 wk
3 Jun
24 Jun
0 wk
14 Jun
14 Jun
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
1 Jun
26 Jun
0 wk
1 Jun
16 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
13 – 27 Apr
6 Jun
5-7 wk
1 Jun
11 Jul
0 wk
1 Jun
1 Jul
0 wk
Potato
Solanum tuberosum
30 Apr – 14 May
4-6 wk
11 Jun
1 wk after
11 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
13 – 27 Apr
11 Jun
5-7 wk
1 Jun
16 Jul
0 wk
2 Jun
6 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
17 – 24 May
25 May
3-4 wk
14 Jun
15 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
4 – 11 May
17 May
3-4 wk
1 Jun
7 Jun
0 wk
7 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
20 Apr – 4 May
18 Jun
4-6 wk
1 Jun
16 Jul
0 wk
Lettuce
Lactuca sativa
4 – 11 May
30 Jun
3-4 wk
1 Jun
21 Jul
0 wk
2 Jun
11 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
20 Apr – 4 May
18 Jun
4-6 wk
1 Jun
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
4 – 18 May
10 May
2-4 wk
1 Jun
0 wk
1 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
2 Jun
0 wk
2 Jun
0 wk
Spinach
Spinacia oleracea
4 – 11 May
18 Jul
3-4 wk
1 Jun
8 Aug
0 wk
29 May
29 Jul
0 wk
Sweet potato
Ipomoea batatas
26 Jun – 10 Jul
4-6 wk
7 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
6 – 20 Apr
19 Apr
6-8 wk
1 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
10 – 24 May
27 May
2-4 wk
7 Jun
10 Jun
1 wk after
26 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
20 Apr – 4 May
18 Jun
4-6 wk
1 Jun
16 Jul
0 wk
Garden pea
Pisum sativum
4 – 11 May
15 Jun
3-4 wk
1 Jun
6 Jul
0 wk
2 Jun
26 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
26 Apr – 10 May
19 May
4-6 wk
7 Jun
16 Jun
1 wk after
Lemon balm
Melissa officinalis
23 Mar – 6 Apr
11 May
8-10 wk
1 Jun
6 Jul
0 wk
26 Jun
26 Jun
4 wk after
Dill
Anethum graveolens
2 Jun
24 Jun
0 wk
Wild chives
Allium schoenoprasum
6 – 20 Apr
30 May
6-8 wk
1 Jun
11 Jul
0 wk
2 Jun
1 Jul
0 wk
Spearmint
Mentha spicata
9 Mar – 6 Apr
16 May
8-12 wk
1 Jun
11 Jul
0 wk
26 Jun
1 Jul
4 wk after
Coriander
Coriandrum sativum
1 Jun
14 Jul
0 wk
14 Jun
4 Jul
2 wk after
Garden sage
Salvia officinalis
25 Mar – 8 Apr
1 May
8-10 wk
3 Jun
26 Jun
0 wk
Common thyme
Thymus vulgaris
23 Mar – 6 Apr
6 May
8-10 wk
1 Jun
1 Jul
0 wk
Oregano
Origanum vulgare
6 – 20 Apr
20 May
6-8 wk
1 Jun
1 Jul
0 wk
26 Jun
4 wk after
Parsley
Petroselinum crispum
6 – 20 Apr
20 May
6-8 wk
1 Jun
1 Jul
0 wk
2 Jun
21 Jun
0 wk
Rosemary
Salvia rosmarinus
Fleece
23 Feb – 23 Mar
20 Mar
10-14 wk
1 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
10 – 17 May
26 May
3-4 wk
7 Jun
16 Jun
1 wk after
Cornflower
Centaurea cyanus
1 Jun
11 Jul
0 wk
2 Jun
1 Jul
0 wk
Statice
Limonium sinuatum
Fleece
29 Mar – 12 Apr
17 Apr
8-10 wk
7 Jun
12 Jun
1 wk after
Sweet William
Dianthus barbatus
6 – 20 Apr
6-8 wk
1 Jun
0 wk
11 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
12 – 26 Apr
1 May
6-8 wk
7 Jun
12 Jun
1 wk after
21 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
17 Apr – 1 May
25 Apr
6-8 wk
12 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
19 Apr – 17 May
18 May
4-8 wk
14 Jun
15 Jun
2 wk after
14 Jun
2 wk after
Foxglove
Digitalis purpurea
23 Mar – 6 Apr
8-10 wk
1 Jun
0 wk
14 Jun
2 wk after
Busy lizzie
Impatiens walleriana
10 Apr – 8 May
21 May
8-12 wk
3 Jul
16 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
12 – 26 Apr
11 May
6-8 wk
7 Jun
22 Jun
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
3 – 17 May
4-6 wk
14 Jun
2 wk after
Chinese lantern
Physalis alkekengi
Fleece
23 Mar – 6 Apr
11 Apr
8-10 wk
1 Jun
6 Jun
0 wk
Love in a mist
Nigella damascena
1 Jun
21 Jun
0 wk
2 Jun
11 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Greenhouse
6 – 20 Apr
2 May
6-8 wk
1 Jun
13 Jun
0 wk
3 Jul
5 wk after
Purple-top vervain
Verbena bonariensis
Fleece
9 Mar – 6 Apr
11 Apr
8-12 wk
1 Jun
6 Jun
0 wk
Cardoon
Cynara cardunculus
Season too short
9 Mar – 6 Apr
15 Mar
8-12 wk
1 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
15 Mar – 12 Apr
11 Apr
8-12 wk
7 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
12 – 26 Apr
25 Apr
6-8 wk
7 Jun
1 wk after
Corn poppy
Papaver rhoeas
1 Jun
6 Jul
0 wk
2 Jun
26 Jun
0 wk
Snapdragon
Antirrhinum majus
9 Mar – 6 Apr
1 May
8-12 wk
1 Jun
26 Jun
0 wk
11 Jun
16 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
5 – 19 Apr
27 Apr
8-10 wk
14 Jun
22 Jun
2 wk after
Sweet pea
Lathyrus odoratus
6 – 27 Apr
27 May
5-8 wk
1 Jun
1 Jul
0 wk
Stock
Matthiola incana
6 – 20 Apr
25 May
6-8 wk
1 Jun
6 Jul
0 wk
14 Jun
26 Jun
2 wk after
Wormwood
Artemisia absinthium
6 – 20 Apr
30 Apr
6-8 wk
1 Jun
11 Jun
0 wk
14 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
26 Apr – 10 May
4 May
4-6 wk
7 Jun
1 wk after
Garden pansy
Viola × wittrockiana
23 Mar – 6 Apr
16 May
8-10 wk
1 Jun
11 Jul
0 wk
11 Jun
1 Jul
1 wk after
Petunia
Petunia
Fleece
15 Mar – 12 Apr
17 Apr
8-12 wk
7 Jun
12 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
Fleece
6 – 20 Apr
25 Apr
6-8 wk
1 Jun
6 Jun
0 wk
26 Jun
4 wk after
Common zinnia
Zinnia elegans
Fleece
26 Apr – 10 May
19 May
4-6 wk
7 Jun
16 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
3 – 17 May
26 May
3-5 wk
7 Jun
16 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
26 Apr – 10 May
18 May
4-6 wk
7 Jun
15 Jun
1 wk after
26 Jun
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
22 Mar – 19 Apr
11 May
8-12 wk
14 Jun
6 Jul
2 wk after
Bee balm
Monarda didyma
9 Mar – 6 Apr
11 Apr
8-12 wk
1 Jun
6 Jun
0 wk
26 Jun
4 wk after
Yarrow
Achillea millefolium
6 – 20 Apr
6-8 wk
1 Jun
0 wk
14 Jun
2 wk after
Safflower
Carthamus tinctorius
1 Jun
9 Jun
0 wk
2 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
6 – 20 Apr
20 May
6-8 wk
1 Jun
1 Jul
0 wk
16 May
21 Jun
2 wk before
Bishop's flower
Ammi majus
20 Apr – 4 May
29 May
4-6 wk
1 Jun
26 Jun
0 wk
14 Jun
16 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
15 – 29 Mar
17 Mar
10-12 wk
7 Jun
1 wk after
Sunflower
Helianthus annuus
Fleece
10 – 17 May
28 May
3-4 wk
7 Jun
18 Jun
1 wk after
14 Jun
2 wk after
China aster
Callistephus chinensis
Fleece
12 – 26 Apr
17 May
6-8 wk
7 Jun
28 Jun
1 wk after
26 Jun
4 wk after
Annual phlox
Phlox drummondii
12 – 26 Apr
22 Apr
6-8 wk
7 Jun
1 wk after
14 Jul
6 wk after
Hollyhock
Alcea rosea
6 – 20 Apr
6-8 wk
1 Jun
0 wk
14 Jun
2 wk after
Alpine delphinium
Delphinium elatum
9 Mar – 6 Apr
11 Apr
8-12 wk
1 Jun
6 Jun
0 wk
26 Jun
4 wk after
African marigold
Tagetes erecta
Fleece
12 – 26 Apr
11 May
6-8 wk
7 Jun
22 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
Fleece
6 – 20 Apr
7 May
6-8 wk
1 Jun
18 Jun
0 wk
26 Jun
4 wk after
Wood sage
Salvia nemorosa
23 Mar – 6 Apr
1 Apr
8-10 wk
1 Jun
0 wk
26 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
29 Mar – 26 Apr
5 May
6-10 wk
7 Jun
16 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
1 Jun
28 Jun
0 wk
2 Jun
18 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
29 Mar – 12 Apr
9 Apr
8-10 wk
7 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
6 – 20 Apr
30 Apr
6-8 wk
1 Jun
11 Jun
0 wk
14 Jun
2 wk after