Description Family Asparagaceae. Originating from the USA and Mexico. Striking, glaucous silver-blue leaves form a dense, spherical crown. White bell-shaped flowers bloom on tall spikes in summer. Easy to grow in full sun and poor, well-drained soil. Blue and Blue in Your Garden A selected strain of Yucca rostrata with intense blue tones to its leaves. Blue and Blue adds a new dimension to the exceptional silver species whilst retaining its strong, reliable growing traits. Its dome-shaped heads offer an exciting combination of architecture and colour, complementing other silver or blue Mediterranean plants. This yucca is hardy in southern and coastal UK gardens and slowly develops a trunk, becoming a striking architectural feature. After 10 – 2o years, it can reach 2.5 – 4m tall and 1.5 – 2.5m wide. Mature plants produce flower spikes up to 1.5m tall, with clusters of white, pollinator-attracting bell-shaped flowers. Many spiky Mediterranean-style plants can be downright lethal. This outstanding variety is different — its slender leaves make it far more approachable. That makes it safe and stunning for pots on Norfolk and Suffolk’s sunny patios: the perfect exotic architectural silver-blue yucca. Growing Tips for the Blue Beaked Yucca (Yucca rostrata). Soil and sun: in full sun for best flowering and faster growth, or partial shade, in any free-draining, poor soil. Planting: at any time of year. Never plant a dry plant! Plunge or stand in water for 30 minutes to drench the root ball before planting. Watering: easy: drought-tolerant once established. Water regularly during its first summer while it is rooting out. Pruning: none required. Leave dead leaf bases to clad the trunk, creating a natural-looking specimen, or remove to reveal a rugged trunk. Cut expired flower spikes as low as possible. Like many Asparagaceae family species, such as cordylines, Yucca rostrata Blue and Blue branches after flowering. After many years, this will result in a multi-headed tree-like specimen. Until then, this exotic architectural silver-blue yucca will maintain its architectural single pincushion-like head of azure foliage. Planting Ideas For the Exotic Silver-Blue Yucca rostrata Blue and Blue. Create a dramatic, deceptively soft-looking desert scene using the globe-shaped crowns of spiky species. Their rounded shapes and slender leaves create an undulating composition that belies their sharp nature. Dasylirions quadrangulatum, acrotriche and longissimum appear to have swaying grass-like leaves from a distance. Yucca linearifolia, Hesperoyucca whipplei, filamentosa ‘Linearifolia’, and thompsoniana add more rigid pincushions. Glamourise the spherical silver and blue spikes with the softer swords of Phormiums ‘Jester’, cookianum ‘Tricolor’, and ‘Cream Delight’. Add lower-growing drifts of Hesperaloe parviflora, with Erygiums ‘Big Blue’, ‘Picos Amethyst’, variefolium and Salvia ‘Little Spire’ adding cool azure hues. Finally, carpet the whole composition with Glandora ‘Heavenly Blue’.
