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Here, the best bulbs to plant in the fall. ... meaning months of temperatures in the 30s and low 40s. That means in zones 7 to 10, you'll need to buy “pre-chilled” bulbs or chill them yourself ...
Mainly known for the garden cultivars known as Dutch Iris, Spanish Iris and English Iris. They generally flower between early to mid-summer and each stem produces between 1 - 3 flowers. Most bulbs should be planted in late autumn, 10 cm deep and between 5–10 cm apart. [3] Section Xiphium. Iris boissieri Henriq; Iris filifolia Boiss. Iris ...
Iris × hollandica, commonly known as the Dutch iris, is a hybrid iris developed from species native to Portugal, Spain and North Africa [1] (Iris tingitana × Iris xiphium). [2] Two varieties of Iris xiphium (var. praecox) from Spain and (var. lusitanica) from Portugal, were crossed with Iris tingitana (from North Africa).
Iris delavayi will tolerate temperatures of up to −15 degrees C. [7] But may survive lower if protected or well mulched in winter. [16] It is hardy to USDA Zone 5–8, [5] [9] and Zone H2 (which means Hardy to −15 to −20 °C (5 to −4 °F) [26]), in Europe. [10] They prefer soils with a ph level of 5.5 to 7 (acidic to neutral). [9]
A honey bee collecting nectar from an apricot flower.. The nectar resource in a given area depends on the kinds of flowering plants present and their blooming periods. Which kinds grow in an area depends on soil texture, soil pH, soil drainage, daily maximum and minimum temperatures, precipitation, extreme minimum winter temperature, and growing degre
Iris speculatrix is hardy to H5 (H5 means hardy down to 0 to −5° , [28]). [7] It is hardy to USDA Zone 6, [14] but it may prefer Zones 7 – 9. [10] [23] Other places it may need the protection of a heated greenhouse. [23] It is considered 'tender' (needing protection) in the UK. [5] It likes well drained soils with a PH level of between 5.0 ...
Iris subg. Scorpiris, commonly called Juno, is a subgenus of Iris, representing the smooth-bulbed bulbous irises. For a while it was an independent genus Juno Tratt. in some classifications. [1] [2] [3] There are around 60 different species of Juno irises, making it the largest group of bulbous irises.
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