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Method
Rel. frost
Last spring frost (0°C) 9 Jun Frost 3 of 4 years · 20 years of data
Frost-free season 79 days 9 Jun – 27 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)
21 Apr – 5 May
11 Jun
5-7 wk
9 Jun
16 Jul
0 wk
10 Jun
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
28 Apr – 12 May
23 Jun
4-6 wk
9 Jun
21 Jul
0 wk
10 Jun
11 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
23 Mar – 20 Apr
8-12 wk
15 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
21 Apr – 5 May
6 Jun
5-7 wk
9 Jun
11 Jul
0 wk
9 Jun
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
18 – 25 May
3-4 wk
15 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Greenhouse
11 – 18 May
24 May
4-5 wk
15 Jun
21 Jun
1 wk after
22 Jun
2 wk after
Butter bean
Phaseolus lunatus
Season too short
20 – 27 Jun
3-4 wk
18 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
17 Mar – 14 Apr
8-12 wk
9 Jun
0 wk
9 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Season too short
31 May
1 wk before
31 May
1 wk before
Maize
Zea mays
Season too short
12 – 19 May
3-4 wk
9 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
14 – 21 May
17 Jun
3-4 wk
11 Jun
8 Jul
0 wk
22 Jun
28 Jun
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
9 Jun
21 Jun
0 wk
9 Jun
11 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
21 Apr – 5 May
6 Jun
5-7 wk
9 Jun
11 Jul
0 wk
9 Jun
1 Jul
0 wk
Potato
Solanum tuberosum
Season too short
25 Apr – 9 May
3 May
4-6 wk
6 Jun
0 wk
6 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
21 Apr – 5 May
6 Jun
5-7 wk
9 Jun
11 Jul
0 wk
10 Jun
1 Jul
0 wk
Pumpkin
Cucurbita pepo
Season too short
18 – 25 May
21 May
3-4 wk
15 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Greenhouse
12 – 19 May
16 May
3-4 wk
9 Jun
0 wk
9 Jun
0 wk
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
28 Apr – 12 May
18 Jun
4-6 wk
9 Jun
16 Jul
0 wk
Lettuce
Lactuca sativa
12 – 19 May
25 Jun
3-4 wk
9 Jun
16 Jul
0 wk
10 Jun
6 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
28 Apr – 12 May
18 Jun
4-6 wk
9 Jun
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Season too short
26 Apr – 10 May
16 May
2-4 wk
24 May
30 May
2 wk before
24 May
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Season too short
31 May
1 wk before
31 May
1 wk before
Spinach
Spinacia oleracea
12 – 19 May
20 Jul
3-4 wk
9 Jun
10 Aug
0 wk
6 Jun
31 Jul
0 wk
Sweet potato
Ipomoea batatas
4 – 18 Jul
4-6 wk
15 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
14 – 28 Apr
6-8 wk
9 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
12 – 26 May
23 May
2-4 wk
9 Jun
0 wk
22 Jun
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
28 Apr – 12 May
18 Jun
4-6 wk
9 Jun
16 Jul
0 wk
Garden pea
Pisum sativum
12 – 19 May
10 Jun
3-4 wk
9 Jun
1 Jul
0 wk
10 Jun
21 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
Season too short
4 – 18 May
4-6 wk
15 Jun
1 wk after
Lemon balm
Melissa officinalis
31 Mar – 14 Apr
6 May
8-10 wk
9 Jun
1 Jul
0 wk
4 Jul
4 wk after
Dill
Anethum graveolens
10 Jun
8 Jul
0 wk
Wild chives
Allium schoenoprasum
14 – 28 Apr
30 May
6-8 wk
9 Jun
11 Jul
0 wk
10 Jun
1 Jul
0 wk
Spearmint
Mentha spicata
17 Mar – 14 Apr
16 May
8-12 wk
9 Jun
11 Jul
0 wk
4 Jul
4 wk after
Coriander
Coriandrum sativum
9 Jun
28 Jul
0 wk
22 Jun
18 Jul
2 wk after
Garden sage
Salvia officinalis
2 – 16 Apr
1 May
8-10 wk
11 Jun
26 Jun
0 wk
Common thyme
Thymus vulgaris
31 Mar – 14 Apr
6 May
8-10 wk
9 Jun
1 Jul
0 wk
Oregano
Origanum vulgare
14 – 28 Apr
20 May
6-8 wk
9 Jun
1 Jul
0 wk
4 Jul
4 wk after
Parsley
Petroselinum crispum
14 – 28 Apr
20 May
6-8 wk
9 Jun
1 Jul
0 wk
10 Jun
21 Jun
0 wk
Rosemary
Salvia rosmarinus
Greenhouse
3 – 31 Mar
24 Mar
10-14 wk
9 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
18 – 25 May
3-4 wk
15 Jun
1 wk after
Cornflower
Centaurea cyanus
9 Jun
11 Jul
0 wk
10 Jun
1 Jul
0 wk
Statice
Limonium sinuatum
Greenhouse
31 Mar – 14 Apr
18 Apr
8-10 wk
9 Jun
13 Jun
0 wk
Sweet William
Dianthus barbatus
14 – 28 Apr
6-8 wk
9 Jun
0 wk
19 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
14 – 28 Apr
2 May
6-8 wk
9 Jun
13 Jun
0 wk
11 Jul
5 wk after
Pinnate dahlia
Dahlia × pinnata
Greenhouse
14 – 28 Apr
6 May
6-8 wk
9 Jun
17 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
20 Apr – 18 May
20 May
4-8 wk
15 Jun
17 Jun
1 wk after
15 Jun
1 wk after
Foxglove
Digitalis purpurea
31 Mar – 14 Apr
8-10 wk
9 Jun
0 wk
22 Jun
2 wk after
Busy lizzie
Impatiens walleriana
Fleece
30 Mar – 27 Apr
17 May
8-12 wk
22 Jun
12 Jul
2 wk after
Creeping zinnia
Sanvitalia procumbens
Greenhouse
14 – 28 Apr
12 May
6-8 wk
9 Jun
23 Jun
0 wk
Hyacinth bean
Dolichos lablab
Season too short
11 – 25 May
4-6 wk
22 Jun
2 wk after
Chinese lantern
Physalis alkekengi
Fleece
31 Mar – 14 Apr
6 Apr
8-10 wk
9 Jun
0 wk
Love in a mist
Nigella damascena
9 Jun
16 Jun
0 wk
10 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Greenhouse
14 – 28 Apr
22 Apr
6-8 wk
9 Jun
0 wk
11 Jul
5 wk after
Purple-top vervain
Verbena bonariensis
Fleece
17 Mar – 14 Apr
6 Apr
8-12 wk
9 Jun
0 wk
Cardoon
Cynara cardunculus
Season too short
17 Mar – 14 Apr
17 Mar
8-12 wk
9 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Season too short
23 Mar – 20 Apr
8-12 wk
15 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
20 Apr – 4 May
6-8 wk
15 Jun
1 wk after
Corn poppy
Papaver rhoeas
9 Jun
1 Jul
0 wk
10 Jun
21 Jun
0 wk
Snapdragon
Antirrhinum majus
17 Mar – 14 Apr
26 Apr
8-12 wk
9 Jun
21 Jun
0 wk
19 Jun
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
6 – 20 Apr
28 Apr
8-10 wk
15 Jun
23 Jun
1 wk after
Sweet pea
Lathyrus odoratus
14 Apr – 5 May
27 May
5-8 wk
9 Jun
1 Jul
0 wk
Stock
Matthiola incana
14 – 28 Apr
20 May
6-8 wk
9 Jun
1 Jul
0 wk
22 Jun
2 wk after
Wormwood
Artemisia absinthium
14 – 28 Apr
30 Apr
6-8 wk
9 Jun
11 Jun
0 wk
22 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
4 – 18 May
4-6 wk
15 Jun
1 wk after
Garden pansy
Viola × wittrockiana
31 Mar – 14 Apr
16 May
8-10 wk
9 Jun
11 Jul
0 wk
19 Jun
1 Jul
1 wk after
Petunia
Petunia
Greenhouse
17 Mar – 14 Apr
18 Apr
8-12 wk
9 Jun
13 Jun
0 wk
Sweet Scabious
Scabiosa atropurpurea
Fleece
14 – 28 Apr
20 Apr
6-8 wk
9 Jun
0 wk
4 Jul
4 wk after
Common zinnia
Zinnia elegans
Greenhouse
28 Apr – 12 May
22 May
4-6 wk
9 Jun
19 Jun
0 wk
Common morning glory
Ipomoea purpurea
Season too short
11 – 25 May
3-5 wk
15 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Greenhouse
28 Apr – 12 May
20 May
4-6 wk
9 Jun
17 Jun
0 wk
22 Jun
2 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
30 Mar – 27 Apr
21 Apr
8-12 wk
22 Jun
2 wk after
Bee balm
Monarda didyma
17 Mar – 14 Apr
6 Apr
8-12 wk
9 Jun
0 wk
4 Jul
4 wk after
Yarrow
Achillea millefolium
Fleece
14 – 28 Apr
6-8 wk
9 Jun
0 wk
15 Jun
1 wk after
Safflower
Carthamus tinctorius
9 Jun
11 Jun
0 wk
10 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
14 – 28 Apr
20 May
6-8 wk
9 Jun
1 Jul
0 wk
24 May
21 Jun
2 wk before
Bishop's flower
Ammi majus
28 Apr – 12 May
24 May
4-6 wk
9 Jun
21 Jun
0 wk
22 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
23 Mar – 6 Apr
10-12 wk
15 Jun
1 wk after
Sunflower
Helianthus annuus
Fleece
18 – 25 May
30 May
3-4 wk
15 Jun
20 Jun
1 wk after
22 Jun
2 wk after
China aster
Callistephus chinensis
Fleece
20 Apr – 4 May
19 May
6-8 wk
15 Jun
30 Jun
1 wk after
4 Jul
4 wk after
Annual phlox
Phlox drummondii
Fleece
14 – 28 Apr
29 Apr
6-8 wk
9 Jun
10 Jun
0 wk
4 Jul
4 wk after
Hollyhock
Alcea rosea
14 – 28 Apr
6-8 wk
9 Jun
0 wk
22 Jun
2 wk after
Alpine delphinium
Delphinium elatum
17 Mar – 14 Apr
6 Apr
8-12 wk
9 Jun
0 wk
4 Jul
4 wk after
African marigold
Tagetes erecta
Greenhouse
14 – 28 Apr
12 May
6-8 wk
9 Jun
23 Jun
0 wk
Black-eyed Susan
Rudbeckia hirta
Fleece
14 – 28 Apr
9 May
6-8 wk
9 Jun
20 Jun
0 wk
4 Jul
4 wk after
Wood sage
Salvia nemorosa
Fleece
31 Mar – 14 Apr
6 Apr
8-10 wk
9 Jun
0 wk
22 Jun
2 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
6 Apr – 4 May
15 Apr
6-10 wk
15 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
9 Jun
30 Jun
0 wk
10 Jun
20 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
6 – 20 Apr
23 Apr
8-10 wk
15 Jun
18 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
14 – 28 Apr
30 Apr
6-8 wk
9 Jun
11 Jun
0 wk
22 Jun
2 wk after