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Method
Rel. frost
Last spring frost (0°C) 8 Jun Normal year · 20 years of data
Frost-free season 88 days 8 Jun – 4 Sep
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)
20 Apr – 4 May
14 Jun
5-7 wk
8 Jun
19 Jul
0 wk
12 Jun
9 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
27 Apr – 11 May
26 Jun
4-6 wk
8 Jun
24 Jul
0 wk
12 Jun
14 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
22 Mar – 19 Apr
8-12 wk
14 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
20 Apr – 4 May
9 Jun
5-7 wk
8 Jun
14 Jul
0 wk
8 Jun
4 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
17 – 24 May
3-4 wk
14 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Greenhouse
10 – 17 May
6 Jun
4-5 wk
14 Jun
4 Jul
1 wk after
29 Jun
3 wk after
Butter bean
Phaseolus lunatus
Season too short
19 – 26 Jun
3-4 wk
17 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
16 Mar – 13 Apr
29 Mar
8-12 wk
8 Jun
0 wk
8 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Fleece
4 Jun
1 wk before
4 Jun
1 wk before
Maize
Zea mays
Season too short
11 – 18 May
3-4 wk
8 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
13 – 20 May
26 Jun
3-4 wk
10 Jun
17 Jul
0 wk
29 Jun
7 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
8 Jun
4 Jul
0 wk
8 Jun
24 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
20 Apr – 4 May
9 Jun
5-7 wk
8 Jun
14 Jul
0 wk
8 Jun
4 Jul
0 wk
Potato
Solanum tuberosum
Fleece
1 – 15 May
15 May
4-6 wk
12 Jun
12 Jun
1 wk after
12 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
20 Apr – 4 May
19 Jun
5-7 wk
8 Jun
24 Jul
0 wk
12 Jun
14 Jul
1 wk after
Pumpkin
Cucurbita pepo
Greenhouse
17 – 24 May
14 Jun
3-4 wk
14 Jun
5 Jul
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
11 – 18 May
17 May
3-4 wk
8 Jun
0 wk
18 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
27 Apr – 11 May
21 Jun
4-6 wk
8 Jun
19 Jul
0 wk
Lettuce
Lactuca sativa
11 – 18 May
8 Jul
3-4 wk
8 Jun
29 Jul
0 wk
12 Jun
19 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
27 Apr – 11 May
21 Jun
4-6 wk
8 Jun
19 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
11 – 25 May
14 May
2-4 wk
8 Jun
0 wk
8 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
4 Jun
1 wk before
4 Jun
1 wk before
Spinach
Spinacia oleracea
11 – 18 May
23 Jul
3-4 wk
8 Jun
13 Aug
0 wk
4 Jun
3 Aug
1 wk before
Sweet potato
Ipomoea batatas
10 – 24 Jul
4-6 wk
21 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Season too short
13 – 27 Apr
6-8 wk
8 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
11 – 25 May
16 Jun
2-4 wk
8 Jun
30 Jun
0 wk
29 Jun
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
27 Apr – 11 May
21 Jun
4-6 wk
8 Jun
19 Jul
0 wk
Garden pea
Pisum sativum
11 – 18 May
23 Jun
3-4 wk
8 Jun
14 Jul
0 wk
12 Jun
4 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
3 – 17 May
23 May
4-6 wk
14 Jun
20 Jun
1 wk after
Lemon balm
Melissa officinalis
30 Mar – 13 Apr
19 May
8-10 wk
8 Jun
14 Jul
0 wk
13 Jul
5 wk after
Dill
Anethum graveolens
12 Jun
17 Jul
1 wk after
Wild chives
Allium schoenoprasum
13 – 27 Apr
2 Jun
6-8 wk
8 Jun
14 Jul
0 wk
12 Jun
4 Jul
1 wk after
Spearmint
Mentha spicata
16 Mar – 13 Apr
19 May
8-12 wk
8 Jun
14 Jul
0 wk
13 Jul
5 wk after
Coriander
Coriandrum sativum
8 Jun
6 Aug
0 wk
29 Jun
27 Jul
3 wk after
Garden sage
Salvia officinalis
1 – 15 Apr
4 May
8-10 wk
10 Jun
29 Jun
0 wk
Common thyme
Thymus vulgaris
30 Mar – 13 Apr
9 May
8-10 wk
8 Jun
4 Jul
0 wk
Oregano
Origanum vulgare
13 – 27 Apr
23 May
6-8 wk
8 Jun
4 Jul
0 wk
13 Jul
5 wk after
Parsley
Petroselinum crispum
13 – 27 Apr
23 May
6-8 wk
8 Jun
4 Jul
0 wk
12 Jun
24 Jun
1 wk after
Rosemary
Salvia rosmarinus
4 Mar – 1 Apr
27 Mar
10-14 wk
10 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
17 – 24 May
30 May
3-4 wk
14 Jun
20 Jun
1 wk after
Cornflower
Centaurea cyanus
8 Jun
14 Jul
0 wk
12 Jun
4 Jul
1 wk after
Statice
Limonium sinuatum
Fleece
5 – 19 Apr
22 Apr
8-10 wk
14 Jun
17 Jun
1 wk after
Sweet William
Dianthus barbatus
13 – 27 Apr
6-8 wk
8 Jun
0 wk
24 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
19 Apr – 3 May
6 May
6-8 wk
14 Jun
17 Jun
1 wk after
6 Aug
8 wk after
Pinnate dahlia
Dahlia × pinnata
24 Apr – 8 May
29 Apr
6-8 wk
19 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
23 Apr – 21 May
6 Jun
4-8 wk
18 Jun
4 Jul
1 wk after
18 Jun
24 Jun
1 wk after
Foxglove
Digitalis purpurea
30 Mar – 13 Apr
8-10 wk
8 Jun
0 wk
29 Jun
3 wk after
Busy lizzie
Impatiens walleriana
Fleece
29 Mar – 26 Apr
10 Jun
8-12 wk
21 Jun
5 Aug
2 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
19 Apr – 3 May
16 May
6-8 wk
14 Jun
27 Jun
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
10 – 24 May
4-6 wk
21 Jun
2 wk after
Chinese lantern
Physalis alkekengi
1 – 15 Apr
12 Apr
8-10 wk
10 Jun
0 wk
Love in a mist
Nigella damascena
8 Jun
29 Jun
0 wk
12 Jun
19 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Fleece
19 Apr – 3 May
26 Apr
6-8 wk
14 Jun
1 wk after
6 Aug
8 wk after
Purple-top vervain
Verbena bonariensis
18 Mar – 15 Apr
12 Apr
8-12 wk
10 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
16 Mar – 13 Apr
20 Mar
8-12 wk
8 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
22 Mar – 19 Apr
15 Apr
8-12 wk
14 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
19 Apr – 3 May
29 Apr
6-8 wk
14 Jun
1 wk after
Corn poppy
Papaver rhoeas
8 Jun
14 Jul
0 wk
12 Jun
4 Jul
1 wk after
Snapdragon
Antirrhinum majus
16 Mar – 13 Apr
9 May
8-12 wk
8 Jun
4 Jul
0 wk
24 Jun
24 Jun
2 wk after
Flossflower
Ageratum houstonianum
Greenhouse
5 – 19 Apr
14 May
8-10 wk
14 Jun
9 Jul
1 wk after
Sweet pea
Lathyrus odoratus
13 Apr – 4 May
30 May
5-8 wk
8 Jun
4 Jul
0 wk
Stock
Matthiola incana
13 – 27 Apr
2 Jun
6-8 wk
8 Jun
14 Jul
0 wk
29 Jun
4 Jul
3 wk after
Wormwood
Artemisia absinthium
13 – 27 Apr
3 May
6-8 wk
8 Jun
14 Jun
0 wk
29 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
3 – 17 May
8 May
4-6 wk
14 Jun
1 wk after
Garden pansy
Viola × wittrockiana
30 Mar – 13 Apr
19 May
8-10 wk
8 Jun
14 Jul
0 wk
24 Jun
4 Jul
2 wk after
Petunia
Petunia
Fleece
22 Mar – 19 Apr
22 Apr
8-12 wk
14 Jun
17 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
15 – 29 Apr
26 Apr
6-8 wk
10 Jun
0 wk
27 Jul
7 wk after
Common zinnia
Zinnia elegans
Fleece
3 – 17 May
23 May
4-6 wk
14 Jun
20 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
10 – 24 May
30 May
3-5 wk
14 Jun
20 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
3 – 17 May
27 May
4-6 wk
14 Jun
24 Jun
1 wk after
13 Jul
5 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
29 Mar – 26 Apr
15 May
8-12 wk
21 Jun
10 Jul
2 wk after
Bee balm
Monarda didyma
16 Mar – 13 Apr
19 Apr
8-12 wk
8 Jun
14 Jun
0 wk
13 Jul
5 wk after
Yarrow
Achillea millefolium
13 – 27 Apr
6-8 wk
8 Jun
0 wk
29 Jun
3 wk after
Safflower
Carthamus tinctorius
8 Jun
14 Jun
0 wk
12 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
13 – 27 Apr
23 May
6-8 wk
8 Jun
4 Jul
0 wk
21 May
24 Jun
3 wk before
Bishop's flower
Ammi majus
27 Apr – 11 May
6 Jun
4-6 wk
8 Jun
4 Jul
0 wk
29 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
22 Mar – 5 Apr
26 Mar
10-12 wk
14 Jun
1 wk after
Sunflower
Helianthus annuus
Fleece
17 – 24 May
12 Jun
3-4 wk
14 Jun
3 Jul
1 wk after
29 Jun
3 wk after
China aster
Callistephus chinensis
26 Apr – 10 May
24 May
6-8 wk
21 Jun
5 Jul
2 wk after
27 Jul
7 wk after
Annual phlox
Phlox drummondii
Fleece
13 – 27 Apr
16 May
6-8 wk
8 Jun
27 Jun
0 wk
13 Jul
5 wk after
Hollyhock
Alcea rosea
13 – 27 Apr
6-8 wk
8 Jun
0 wk
29 Jun
3 wk after
Alpine delphinium
Delphinium elatum
16 Mar – 13 Apr
19 Apr
8-12 wk
8 Jun
14 Jun
0 wk
13 Jul
5 wk after
African marigold
Tagetes erecta
Fleece
19 Apr – 3 May
16 May
6-8 wk
14 Jun
27 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
15 – 29 Apr
14 May
6-8 wk
10 Jun
25 Jun
0 wk
27 Jul
7 wk after
Wood sage
Salvia nemorosa
30 Mar – 13 Apr
9 Apr
8-10 wk
8 Jun
0 wk
13 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
5 Apr – 3 May
9 May
6-10 wk
14 Jun
20 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
8 Jun
13 Jul
0 wk
12 Jun
3 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
Fleece
5 – 19 Apr
2 May
8-10 wk
14 Jun
27 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
13 – 27 Apr
3 May
6-8 wk
8 Jun
14 Jun
0 wk
29 Jun
3 wk after