Pilosocereus azureus
Blue Columnar Cactus
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Pilosocereus azureus, often known as the Blue Columnar Cactus, is a striking architectural species with upright stems in a soft powdery blue tone. Its clean, vertical form makes it a simple yet impactful addition to shelves, desks or sunny spots.
Native to South America, this cactus is easy to care for and thrives in bright conditions. As it matures, it develops a more sculptural, column-like presence, bringing height and structure to your space.
Care & styling tips
Place in a bright position with plenty of light, including some direct sun. Allow the compost to dry out fully between waterings, and reduce watering significantly in winter. Feed monthly during the growing season with a cactus fertiliser.
Nursery Pot Size: 8.5cm
Height: approx. 15cm
Fits Decorative Pot Size: 10cm+
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Standard UK Delivery
Tracked delivery within 1–3 working days to most UK postcodes (excl. Northern Ireland).
Orders under £15 – £5.95
Orders £15–£34.99 – £4.95
Orders £35–£49.99 – £3.95
Orders £50+ – FREE
Local Hand Delivery (Edinburgh)
£7.95 flat rate. Monday–Friday delivery to EH1–EH22, EH28 and EH29. Select your delivery date at checkout. Required for large plants, terrariums and fragile items.
Store Pickup
Free collection within 1 hour from our St Vincent Street shop (EH3 6SH).
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Care Instructions
Light
Prefers bright light and will happily tolerate direct sunshine. During the hottest part of summer, avoid prolonged scorching midday sun behind south-facing glass.
Water
Water thoroughly, then allow the compost to dry out completely before watering again. Water less during winter, allowing the compost to remain dry for longer.
Food
Feed once a month during spring and summer with a quality liquid plant food. There is no need to feed during winter.
Humidity
This plant thrives in normal household humidity and does not require misting or additional humidity.
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