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Method
Rel. frost
Last spring frost (0°C) 9 Jun Normal year · 20 years of data
Frost-free season 112 days 9 Jun – 29 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)
21 Apr – 5 May
8 Jun
5-7 wk
9 Jun
13 Jul
0 wk
10 Jun
3 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
28 Apr – 12 May
20 Jun
4-6 wk
9 Jun
18 Jul
0 wk
10 Jun
8 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
3 Jun
5-7 wk
9 Jun
8 Jul
0 wk
9 Jun
28 Jun
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
31 May
4-5 wk
15 Jun
28 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
21 Mar
8-12 wk
9 Jun
0 wk
9 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Fleece
6 Jun
0 wk
6 Jun
0 wk
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
27 Jun
3-4 wk
11 Jun
18 Jul
0 wk
22 Jun
8 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
9 Jun
28 Jun
0 wk
9 Jun
18 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
21 Apr – 5 May
3 Jun
5-7 wk
9 Jun
8 Jul
0 wk
9 Jun
28 Jun
0 wk
Potato
Solanum tuberosum
Greenhouse
25 Apr – 9 May
17 May
4-6 wk
6 Jun
14 Jun
0 wk
6 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
21 Apr – 5 May
13 Jun
5-7 wk
9 Jun
18 Jul
0 wk
10 Jun
8 Jul
0 wk
Pumpkin
Cucurbita pepo
Season too short
18 – 25 May
3-4 wk
15 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Greenhouse
12 – 19 May
22 May
3-4 wk
9 Jun
12 Jun
0 wk
9 Jun
0 wk
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
28 Apr – 12 May
15 Jun
4-6 wk
9 Jun
13 Jul
0 wk
Lettuce
Lactuca sativa
12 – 19 May
2 Jul
3-4 wk
9 Jun
23 Jul
0 wk
10 Jun
13 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
28 Apr – 12 May
15 Jun
4-6 wk
9 Jun
13 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Fleece
6 – 20 May
14 May
2-4 wk
3 Jun
1 wk before
3 Jun
1 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
6 Jun
0 wk
6 Jun
0 wk
Spinach
Spinacia oleracea
12 – 19 May
17 Jul
3-4 wk
9 Jun
7 Aug
0 wk
6 Jun
28 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
Season too short
12 – 26 May
2-4 wk
9 Jun
0 wk
22 Jun
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
28 Apr – 12 May
15 Jun
4-6 wk
9 Jun
13 Jul
0 wk
Garden pea
Pisum sativum
12 – 19 May
17 Jun
3-4 wk
9 Jun
8 Jul
0 wk
10 Jun
28 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
13 May
8-10 wk
9 Jun
8 Jul
0 wk
4 Jul
4 wk after
Dill
Anethum graveolens
10 Jun
18 Jul
0 wk
Wild chives
Allium schoenoprasum
Season too short
14 – 28 Apr
22 May
6-8 wk
9 Jun
3 Jul
0 wk
31 May
23 Jun
1 wk before
Spearmint
Mentha spicata
17 Mar – 14 Apr
13 May
8-12 wk
9 Jun
8 Jul
0 wk
4 Jul
4 wk after
Coriander
Coriandrum sativum
9 Jun
7 Aug
0 wk
22 Jun
28 Jul
2 wk after
Garden sage
Salvia officinalis
2 – 16 Apr
28 Apr
8-10 wk
11 Jun
23 Jun
0 wk
Common thyme
Thymus vulgaris
31 Mar – 14 Apr
3 May
8-10 wk
9 Jun
28 Jun
0 wk
Oregano
Origanum vulgare
14 – 28 Apr
17 May
6-8 wk
9 Jun
28 Jun
0 wk
4 Jul
4 wk after
Parsley
Petroselinum crispum
14 – 28 Apr
17 May
6-8 wk
9 Jun
28 Jun
0 wk
10 Jun
18 Jun
0 wk
Rosemary
Salvia rosmarinus
Fleece
3 – 31 Mar
30 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
8 Jul
0 wk
10 Jun
28 Jun
0 wk
Statice
Limonium sinuatum
Greenhouse
31 Mar – 14 Apr
3 May
8-10 wk
9 Jun
28 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
17 May
6-8 wk
9 Jun
28 Jun
0 wk
11 Jul
5 wk after
Pinnate dahlia
Dahlia × pinnata
Greenhouse
14 – 28 Apr
17 May
6-8 wk
9 Jun
28 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
20 Apr – 18 May
31 May
4-8 wk
15 Jun
28 Jun
1 wk after
15 Jun
18 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
Greenhouse
23 Mar – 20 Apr
16 Jun
8-12 wk
15 Jun
11 Aug
1 wk after
Creeping zinnia
Sanvitalia procumbens
Greenhouse
14 – 28 Apr
27 May
6-8 wk
9 Jun
8 Jul
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
13 Apr
8-10 wk
9 Jun
0 wk
Love in a mist
Nigella damascena
9 Jun
23 Jun
0 wk
10 Jun
13 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Greenhouse
14 – 28 Apr
7 May
6-8 wk
9 Jun
18 Jun
0 wk
11 Jul
5 wk after
Purple-top vervain
Verbena bonariensis
Fleece
17 Mar – 14 Apr
13 Apr
8-12 wk
9 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
17 Mar – 14 Apr
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
8 Jul
0 wk
10 Jun
28 Jun
0 wk
Snapdragon
Antirrhinum majus
17 Mar – 14 Apr
3 May
8-12 wk
9 Jun
28 Jun
0 wk
19 Jun
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
6 – 20 Apr
13 May
8-10 wk
15 Jun
8 Jul
1 wk after
Sweet pea
Lathyrus odoratus
14 Apr – 5 May
24 May
5-8 wk
9 Jun
28 Jun
0 wk
Stock
Matthiola incana
14 – 28 Apr
27 May
6-8 wk
9 Jun
8 Jul
0 wk
22 Jun
28 Jun
2 wk after
Wormwood
Artemisia absinthium
14 – 28 Apr
27 Apr
6-8 wk
9 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
13 May
8-10 wk
9 Jun
8 Jul
0 wk
19 Jun
28 Jun
1 wk after
Petunia
Petunia
Greenhouse
17 Mar – 14 Apr
3 May
8-12 wk
9 Jun
28 Jun
0 wk
Sweet Scabious
Scabiosa atropurpurea
Fleece
14 – 28 Apr
27 Apr
6-8 wk
9 Jun
0 wk
4 Jul
4 wk after
Common zinnia
Zinnia elegans
Greenhouse
28 Apr – 12 May
29 May
4-6 wk
9 Jun
26 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
31 May
4-6 wk
9 Jun
28 Jun
0 wk
22 Jun
2 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
30 Mar – 27 Apr
8-12 wk
22 Jun
2 wk after
Bee balm
Monarda didyma
17 Mar – 14 Apr
13 Apr
8-12 wk
9 Jun
0 wk
4 Jul
4 wk after
Yarrow
Achillea millefolium
14 – 28 Apr
6-8 wk
9 Jun
0 wk
22 Jun
2 wk after
Safflower
Carthamus tinctorius
9 Jun
0 wk
10 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
14 – 28 Apr
12 May
6-8 wk
9 Jun
23 Jun
0 wk
24 May
13 Jun
2 wk before
Bishop's flower
Ammi majus
28 Apr – 12 May
31 May
4-6 wk
9 Jun
28 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
7 Jun
3-4 wk
15 Jun
28 Jun
1 wk after
22 Jun
2 wk after
China aster
Callistephus chinensis
Fleece
20 Apr – 4 May
27 May
6-8 wk
15 Jun
8 Jul
1 wk after
4 Jul
4 wk after
Annual phlox
Phlox drummondii
Fleece
14 – 28 Apr
5 May
6-8 wk
9 Jun
16 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
13 Apr
8-12 wk
9 Jun
0 wk
4 Jul
4 wk after
African marigold
Tagetes erecta
Greenhouse
14 – 28 Apr
27 May
6-8 wk
9 Jun
8 Jul
0 wk
Black-eyed Susan
Rudbeckia hirta
16 – 30 Apr
17 May
6-8 wk
11 Jun
28 Jun
0 wk
22 Jul
6 wk after
Wood sage
Salvia nemorosa
31 Mar – 14 Apr
3 Apr
8-10 wk
9 Jun
0 wk
4 Jul
4 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
6 Apr – 4 May
6-10 wk
15 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
9 Jun
8 Jul
0 wk
10 Jun
28 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
6 – 20 Apr
3 May
8-10 wk
15 Jun
28 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
Season too short
14 – 28 Apr
22 Apr
6-8 wk
9 Jun
0 wk
9 Jun
0 wk