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Method
Rel. frost
Last spring frost (0°C) 6 Jun Normal year · 20 years of data
Frost-free season 92 days 6 Jun – 6 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)
18 Apr – 2 May
11 Jun
5-7 wk
6 Jun
16 Jul
0 wk
7 Jun
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
25 Apr – 9 May
23 Jun
4-6 wk
6 Jun
21 Jul
0 wk
7 Jun
11 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
20 Mar – 17 Apr
8-12 wk
12 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
18 Apr – 2 May
6 Jun
5-7 wk
6 Jun
11 Jul
0 wk
6 Jun
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
15 – 22 May
3-4 wk
12 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Greenhouse
8 – 15 May
1 Jun
4-5 wk
12 Jun
29 Jun
1 wk after
19 Jun
19 Jun
2 wk after
Butter bean
Phaseolus lunatus
Season too short
17 – 24 Jun
3-4 wk
15 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
14 Mar – 11 Apr
16 Mar
8-12 wk
6 Jun
0 wk
6 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Greenhouse
28 May
31 May
1 wk before
28 May
1 wk before
Maize
Zea mays
Season too short
9 – 16 May
3-4 wk
6 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
11 – 18 May
24 Jun
3-4 wk
8 Jun
15 Jul
0 wk
19 Jun
5 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
6 Jun
29 Jun
0 wk
6 Jun
19 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
18 Apr – 2 May
6 Jun
5-7 wk
6 Jun
11 Jul
0 wk
6 Jun
1 Jul
0 wk
Potato
Solanum tuberosum
Greenhouse
22 Apr – 6 May
15 May
4-6 wk
3 Jun
12 Jun
0 wk
3 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
18 Apr – 2 May
14 Jun
5-7 wk
6 Jun
19 Jul
0 wk
7 Jun
9 Jul
0 wk
Pumpkin
Cucurbita pepo
Greenhouse
15 – 22 May
8 Jun
3-4 wk
12 Jun
29 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
9 – 16 May
14 May
3-4 wk
6 Jun
0 wk
12 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
25 Apr – 9 May
18 Jun
4-6 wk
6 Jun
16 Jul
0 wk
Lettuce
Lactuca sativa
9 – 16 May
3 Jul
3-4 wk
6 Jun
24 Jul
0 wk
7 Jun
14 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
25 Apr – 9 May
18 Jun
4-6 wk
6 Jun
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Greenhouse
23 Apr – 7 May
23 May
2-4 wk
21 May
6 Jun
2 wk before
21 May
27 May
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Greenhouse
28 May
31 May
1 wk before
28 May
1 wk before
Spinach
Spinacia oleracea
9 – 16 May
20 Jul
3-4 wk
6 Jun
10 Aug
0 wk
3 Jun
31 Jul
0 wk
Sweet potato
Ipomoea batatas
1 – 15 Jul
4-6 wk
12 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
11 – 25 Apr
11 Apr
6-8 wk
6 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
9 – 23 May
10 Jun
2-4 wk
6 Jun
24 Jun
0 wk
19 Jun
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
25 Apr – 9 May
18 Jun
4-6 wk
6 Jun
16 Jul
0 wk
Garden pea
Pisum sativum
9 – 16 May
18 Jun
3-4 wk
6 Jun
9 Jul
0 wk
7 Jun
29 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
1 – 15 May
17 May
4-6 wk
12 Jun
14 Jun
1 wk after
Lemon balm
Melissa officinalis
28 Mar – 11 Apr
14 May
8-10 wk
6 Jun
9 Jul
0 wk
1 Jul
4 wk after
Dill
Anethum graveolens
7 Jun
15 Jul
0 wk
Wild chives
Allium schoenoprasum
11 – 25 Apr
30 May
6-8 wk
6 Jun
11 Jul
0 wk
7 Jun
1 Jul
0 wk
Spearmint
Mentha spicata
14 Mar – 11 Apr
16 May
8-12 wk
6 Jun
11 Jul
0 wk
1 Jul
1 Jul
4 wk after
Coriander
Coriandrum sativum
6 Jun
4 Aug
0 wk
19 Jun
25 Jul
2 wk after
Garden sage
Salvia officinalis
30 Mar – 13 Apr
1 May
8-10 wk
8 Jun
26 Jun
0 wk
Common thyme
Thymus vulgaris
28 Mar – 11 Apr
6 May
8-10 wk
6 Jun
1 Jul
0 wk
Oregano
Origanum vulgare
11 – 25 Apr
20 May
6-8 wk
6 Jun
1 Jul
0 wk
1 Jul
4 wk after
Parsley
Petroselinum crispum
11 – 25 Apr
20 May
6-8 wk
6 Jun
1 Jul
0 wk
7 Jun
21 Jun
0 wk
Rosemary
Salvia rosmarinus
Fleece
28 Feb – 28 Mar
31 Mar
10-14 wk
6 Jun
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
15 – 22 May
24 May
3-4 wk
12 Jun
14 Jun
1 wk after
Cornflower
Centaurea cyanus
6 Jun
11 Jul
0 wk
7 Jun
1 Jul
0 wk
Statice
Limonium sinuatum
Greenhouse
28 Mar – 11 Apr
30 Apr
8-10 wk
6 Jun
25 Jun
0 wk
Sweet William
Dianthus barbatus
11 – 25 Apr
6-8 wk
6 Jun
0 wk
16 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
11 – 25 Apr
14 May
6-8 wk
6 Jun
25 Jun
0 wk
8 Jul
5 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
13 – 27 Apr
7 May
6-8 wk
8 Jun
18 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
17 Apr – 15 May
1 Jun
4-8 wk
12 Jun
29 Jun
1 wk after
12 Jun
19 Jun
1 wk after
Foxglove
Digitalis purpurea
28 Mar – 11 Apr
8-10 wk
6 Jun
0 wk
19 Jun
2 wk after
Busy lizzie
Impatiens walleriana
Fleece
27 Mar – 24 Apr
4 Jun
8-12 wk
19 Jun
30 Jul
2 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
17 Apr – 1 May
12 May
6-8 wk
12 Jun
23 Jun
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
8 – 22 May
4-6 wk
19 Jun
2 wk after
Chinese lantern
Physalis alkekengi
30 Mar – 13 Apr
10 Apr
8-10 wk
8 Jun
0 wk
Love in a mist
Nigella damascena
6 Jun
24 Jun
0 wk
7 Jun
14 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Greenhouse
11 – 25 Apr
4 May
6-8 wk
6 Jun
15 Jun
0 wk
8 Jul
5 wk after
Purple-top vervain
Verbena bonariensis
16 Mar – 13 Apr
10 Apr
8-12 wk
8 Jun
0 wk
Cardoon
Cynara cardunculus
Season too short
14 Mar – 11 Apr
17 Mar
8-12 wk
6 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Season too short
20 Mar – 17 Apr
9 Apr
8-12 wk
12 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
17 Apr – 1 May
23 Apr
6-8 wk
12 Jun
1 wk after
Corn poppy
Papaver rhoeas
6 Jun
9 Jul
0 wk
7 Jun
29 Jun
0 wk
Snapdragon
Antirrhinum majus
14 Mar – 11 Apr
4 May
8-12 wk
6 Jun
29 Jun
0 wk
16 Jun
19 Jun
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
3 – 17 Apr
10 May
8-10 wk
12 Jun
5 Jul
1 wk after
Sweet pea
Lathyrus odoratus
11 Apr – 2 May
27 May
5-8 wk
6 Jun
1 Jul
0 wk
Stock
Matthiola incana
11 – 25 Apr
28 May
6-8 wk
6 Jun
9 Jul
0 wk
19 Jun
29 Jun
2 wk after
Wormwood
Artemisia absinthium
11 – 25 Apr
30 Apr
6-8 wk
6 Jun
11 Jun
0 wk
19 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
1 – 15 May
2 May
4-6 wk
12 Jun
1 wk after
Garden pansy
Viola × wittrockiana
28 Mar – 11 Apr
16 May
8-10 wk
6 Jun
11 Jul
0 wk
16 Jun
1 Jul
1 wk after
Petunia
Petunia
Greenhouse
14 Mar – 11 Apr
30 Apr
8-12 wk
6 Jun
25 Jun
0 wk
Sweet Scabious
Scabiosa atropurpurea
13 – 27 Apr
24 Apr
6-8 wk
8 Jun
0 wk
19 Jul
6 wk after
Common zinnia
Zinnia elegans
Greenhouse
25 Apr – 9 May
31 May
4-6 wk
6 Jun
28 Jun
0 wk
Common morning glory
Ipomoea purpurea
Season too short
8 – 22 May
24 May
3-5 wk
12 Jun
14 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Greenhouse
25 Apr – 9 May
1 Jun
4-6 wk
6 Jun
29 Jun
0 wk
19 Jun
19 Jun
2 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
27 Mar – 24 Apr
9 May
8-12 wk
19 Jun
4 Jul
2 wk after
Bee balm
Monarda didyma
14 Mar – 11 Apr
14 Apr
8-12 wk
6 Jun
9 Jun
0 wk
1 Jul
4 wk after
Yarrow
Achillea millefolium
11 – 25 Apr
6-8 wk
6 Jun
0 wk
19 Jun
2 wk after
Safflower
Carthamus tinctorius
6 Jun
11 Jun
0 wk
7 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
11 – 25 Apr
20 May
6-8 wk
6 Jun
1 Jul
0 wk
21 May
21 Jun
2 wk before
Bishop's flower
Ammi majus
25 Apr – 9 May
1 Jun
4-6 wk
6 Jun
29 Jun
0 wk
19 Jun
19 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
20 Mar – 3 Apr
20 Mar
10-12 wk
12 Jun
1 wk after
Sunflower
Helianthus annuus
Fleece
15 – 22 May
8 Jun
3-4 wk
12 Jun
29 Jun
1 wk after
19 Jun
19 Jun
2 wk after
China aster
Callistephus chinensis
24 Apr – 8 May
20 May
6-8 wk
19 Jun
1 Jul
2 wk after
19 Jul
6 wk after
Annual phlox
Phlox drummondii
Fleece
11 – 25 Apr
12 May
6-8 wk
6 Jun
23 Jun
0 wk
1 Jul
4 wk after
Hollyhock
Alcea rosea
11 – 25 Apr
6-8 wk
6 Jun
0 wk
19 Jun
2 wk after
Alpine delphinium
Delphinium elatum
14 Mar – 11 Apr
14 Apr
8-12 wk
6 Jun
9 Jun
0 wk
1 Jul
4 wk after
African marigold
Tagetes erecta
Fleece
17 Apr – 1 May
12 May
6-8 wk
12 Jun
23 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
13 – 27 Apr
10 May
6-8 wk
8 Jun
21 Jun
0 wk
19 Jul
6 wk after
Wood sage
Salvia nemorosa
28 Mar – 11 Apr
4 Apr
8-10 wk
6 Jun
0 wk
1 Jul
4 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
3 Apr – 1 May
3 May
6-10 wk
12 Jun
14 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
6 Jun
9 Jul
0 wk
7 Jun
29 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
3 – 17 Apr
30 Apr
8-10 wk
12 Jun
25 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
11 – 25 Apr
30 Apr
6-8 wk
6 Jun
11 Jun
0 wk
19 Jun
2 wk after