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Narcissus bulbocodium is a variable, small, hardy bulbous perennial, growing to 10–15 cm (4–6 in) tall, with grass-like leaves, and deep yellow trumpet-shaped flowers in mid-Spring. The flower is unusual in that the central trumpet (corona) is exceptionally large in relation to the outer section (perianth) consisting of tiny pointed ...
This eliminates infestations by narcissus fly and nematodes. The bulbs are then dried at a high temperature, and then stored at 15.5 °C. [4] The initiation of new flower development in the bulb takes place in late spring before the bulbs are lifted, and is completed by mid summer while the bulbs are in storage.
Daffodils are hardy plants and don't usually have issues with pests or diseases but can be afflicted by bulb rot, and narcissus yellow strip virus. Pests include bulb mites and narcissus bulb fly.
To achieve optimal flowering results, it is recommended to plant the bulbs at a depth two to three times their own size. [3] Shallow planting may result in a lack of flowers, [3] as the Narcissus instead focuses on bulb division. [12] 'Jetfire' bulbs should be planted early in the bulb-planting season, ideally in late August to early September. [3]
Below is a selected list of Narcissus species, varieties and cultivars which currently (2020) [1] hold the Royal Horticultural Society's Award of Garden Merit (AGM). Narcissus (daffodils) are bulbous perennials which are usually planted as dormant bulbs in autumn (fall) to flower the following spring. Once established they flower reliably every ...
Now is also the time to plant spring-flowering bulbs, such as daffodils, narcissus, Spanish bluebells (Hyacinthoides hispanica), and snowflakes (Leucojum aestivum).
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