{"product_id":"crocus-bleu-grandes-fleurs-bulbes","title":"Large-flowered blue crocus (Crocus vernus) — Bulbs, size 7\/8","description":"\u003csection class=\"product-content verdeia-product\" id=\"crocus-bleu-grandes-fleurs\"\u003e\u003cheader class=\"product-intro\"\u003e\u003cp class=\"product-highlights\"\u003e💙 Large blue cups • 🌱 Compact size, 10 to 12 cm • ❄️ Blooms from February • 🐝 Feeds the first bees • ☀️ Sun or light partial shade • 🧊 Very hardy • 🔁 Naturalizes in lawns • 📏 Bulb size 7\/8\u003c\/p\u003e\n\u003cp class=\"product-description-lead\"\u003eThe \u003cstrong\u003elarge-flowered blue crocus\u003c\/strong\u003e heralds the end of winter: from February, sometimes even before the frosts are over, it opens large blue cups 10 to 12 cm high at ground level, which bloom in the sun and close in the evening. The species, \u003cem\u003eCrocus vernus\u003c\/em\u003e, is \u003cstrong\u003enative to the mountains of Europe (the Alps, Pyrenees, and Balkans)\u003c\/strong\u003e, where it blooms as the snow melts.\u003c\/p\u003e\n\u003cp class=\"product-description-lead\"\u003ePlanted in drifts in a lawn, border, or pot, it comes back each year, spreading little by little, and its solid blue forms a very bright patch. Among our \u003ca href=\"\/en\/collections\/bulbes-a-fleurs\"\u003eflower bulbs\u003c\/a\u003e, it is one of the first to open the season, a few weeks before daffodils and tulips.\u003c\/p\u003e\u003c\/header\u003e\u003csection class=\"product-section\" id=\"formats\"\u003e\u003ch2\u003eHow many bulbs should you choose?\u003c\/h2\u003e\n\u003cp\u003eBlue crocuses make the biggest impact when planted in large drifts: allow 70 to 100 bulbs per square meter, or 15 to 20 bulbs in a pot 20 cm in diameter.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e30 bulbs:\u003c\/strong\u003e about 0.5 m², or two pots and planters on a balcony.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e60 bulbs:\u003c\/strong\u003e about 1 m², for a blue edging or the foot of a tree.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e120 bulbs:\u003c\/strong\u003e about 1.5 to 2 m², for a first blue patch in a lawn.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e240 bulbs:\u003c\/strong\u003e about 3 to 4 m², for a true blue carpet that will spread year after year.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"micro-tip\"\u003eThe larger the pack, the lower the price per bulb: the 240-bulb pack costs less than half the per-bulb price of the 30-bulb pack.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"product-section\" id=\"plantation-emplacement\"\u003e\u003ch2\u003ePlanting \u0026amp; location\u003c\/h2\u003e\n\u003cp\u003ePlant the bulbs from September to November, as long as the soil is not frozen, for blooms from February to March.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExposure:\u003c\/strong\u003e sun or light partial shade; the flowers only open fully in the sun, and the shade of a deciduous tree suits them, as it is still bare in late winter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth:\u003c\/strong\u003e 7 to 8 cm, pointed end up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpacing:\u003c\/strong\u003e 5 to 8 cm between bulbs in the ground; in a pot, they can almost touch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoil type:\u003c\/strong\u003e ordinary and well-drained, even poor soil; it only dislikes standing water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardiness:\u003c\/strong\u003e down to -25 °C and below, it even blooms under a thin layer of snow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"micro-tip\"\u003eIn lawns, lift a clump of turf with a spade, slip a few bulbs underneath, then replace the turf: the lawn remains intact.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"product-section\" id=\"arrosage-entretien\"\u003e\u003ch2\u003eWatering \u0026amp; care\u003c\/h2\u003e\n\u003cp\u003eIn the ground, rain is enough. In pots, the potting mix should never stay waterlogged; excess water causes the small bulbs to rot, as explained in our article on \u003ca href=\"\/en\/blogs\/conseils\/plante-trop-arrosee-sauver-racines-pourries\"\u003eoverwatered plants with damaged roots\u003c\/a\u003e.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWatering:\u003c\/strong\u003e minimal — at planting, then in pots when the potting mix is dry on the surface during flowering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFertilizer:\u003c\/strong\u003e unnecessary in the ground; in pots, use a bulb fertilizer as the leaves emerge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpent flowers:\u003c\/strong\u003e no need to cut them off; they disappear on their own into the foliage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAfter flowering:\u003c\/strong\u003e leave the fine leaves in place to turn yellow for five to six weeks; they replenish the bulb for the following year.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"micro-tip\"\u003eIn lawns, wait until the crocus foliage has turned yellow before the first mow: they'll bloom more profusely the following year.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"product-section\" id=\"associations-deco\"\u003e\u003ch2\u003eDecorating ideas \u0026amp; plant pairings\u003c\/h2\u003e\n\u003cp\u003eIts blue brightens planters and windowsills from late winter, as shown in our guide to \u003ca href=\"\/en\/blogs\/conseils\/plantes-rebord-fenetre-guide\"\u003eplants for windowsills\u003c\/a\u003e.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor a blue and yellow duo,\u003c\/strong\u003e pair it with \u003ca href=\"\/en\/products\/narcisse-tete-a-tete-narcisse-nain-bulbes\"\u003e'Tête-à-Tête' daffodils \u003c\/a\u003e— their small yellow trumpets open in late February, alongside the last blue cups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor a blue and white carpet,\u003c\/strong\u003e plant it with the \u003ca href=\"\/en\/products\/perce-neige-geant-galanthus-elwesii-bulbes\"\u003egiant snowdrop\u003c\/a\u003e — its white bells bloom at the same time, just above the crocuses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor a blue and purple palette,\u003c\/strong\u003e mix it with \u003ca href=\"\/en\/products\/crocus-ruby-giant-crocus-botanique-violet-bulbes\"\u003eCrocus 'Ruby Giant'\u003c\/a\u003e — its purple star-shaped flowers open at the same time, a little lower down.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor a balcony version,\u003c\/strong\u003e plant 15 to 20 bulbs in the \u003ca href=\"\/en\/products\/jardiniere-elho-greenville-easy-balcony-blanche-25cm\"\u003ewhite Elho Greenville Easy Balcony planter\u003c\/a\u003e in the 25 cm size — it hooks onto the railing and its white makes the blue flowers stand out.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"micro-tip\"\u003eIn a pot, plant in layers: daffodils or tulips at the bottom, crocuses above at a depth of 7 cm. The pot blooms from February, then blooms a second time in spring.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"product-section\" id=\"tips\"\u003e\u003ch2\u003eVerdeia tips\u003c\/h2\u003e\n\u003cul class=\"verdeia-tips\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlant as soon as they arrive:\u003c\/strong\u003e small crocus bulbs dry out quickly in the open air. Plant them in the ground within a few days, as you would any \u003ca href=\"\/en\/blogs\/conseils\/comment-bien-accueillir-une-nouvelle-plante\"\u003enew plant arriving at home\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLet them naturalize:\u003c\/strong\u003e don't dig up the bulbs, they overwinter in the ground like the species in our selection of \u003ca href=\"\/en\/blogs\/conseils\/plantes-resistantes-froid-guide\"\u003ecold-hardy plants\u003c\/a\u003e and form new offsets every year.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWatch the bees:\u003c\/strong\u003e on a sunny day in February, open crocuses are often the only source of pollen available. A carpet of crocuses helps colonies get the season off to a good start.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"product-section\" id=\"caracteristiques\"\u003e\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul class=\"tech-details\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eBotanical name:\u003c\/strong\u003e \u003cem\u003eCrocus vernus\u003c\/em\u003e, large blue flowers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon name:\u003c\/strong\u003e Blue crocus, spring crocus\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFamily:\u003c\/strong\u003e Iridaceae\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e species native to the mountains of Europe (the Alps, Pyrenees, and Balkans)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDelivery:\u003c\/strong\u003e dry bulbs, size 7\/8 (7 to 8 cm in circumference), in packs of 30, 60, 120 or 240\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlowering height:\u003c\/strong\u003e 10 to 12 cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlowering:\u003c\/strong\u003e February to March, large blue cups\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlanting:\u003c\/strong\u003e September to November, 7-8 cm deep\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExposure:\u003c\/strong\u003e sun or light partial shade\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWatering:\u003c\/strong\u003e low\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardiness:\u003c\/strong\u003e down to -25 °C and below\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoil type:\u003c\/strong\u003e ordinary, well-drained\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLife cycle:\u003c\/strong\u003e perennial, naturalizes and blooms again every year\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePollinator-friendly:\u003c\/strong\u003e one of the first sources of pollen for bees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCare:\u003c\/strong\u003e very easy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eToxicity:\u003c\/strong\u003e toxic to animals and children if ingested (digestive problems); not to be confused with autumn crocus, which is much more toxic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDecorative style:\u003c\/strong\u003e Natural garden \/ Cottage garden \/ Flowering balcony\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"micro-tip\"\u003eEach bulb is unique: the shade of blue and flowering time naturally vary depending on the soil, position, and climate.\u003c\/p\u003e\u003c\/section\u003e\u003c\/section\u003e","brand":"Everspring","offers":[{"title":"30 bulbs","offer_id":57278105682185,"sku":"50800","price":25.95,"currency_code":"EUR","in_stock":true},{"title":"60 bulbs","offer_id":57472309494025,"sku":"61563","price":34.95,"currency_code":"EUR","in_stock":true},{"title":"120 bulbs","offer_id":57472309526793,"sku":"61564","price":54.95,"currency_code":"EUR","in_stock":true},{"title":"240 bulbs","offer_id":57472309559561,"sku":"61565","price":86.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0938\/1006\/5673\/files\/crocus-bleu-a-grandes-fleurs-crocus-vernus-bulbes-calibre-78-verdeia-2054568.png?v=1792621412","url":"https:\/\/verdeia.eu\/en\/products\/large-flowered-blue-crocus-bulbs","provider":"Verdeia","version":"1.0","type":"link"}