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