Puya alpestris

sapphire tower
Pretty silvery-green rosettes raise towers in spring of luminous, otherworldly turquoise flowers with orange anthers when mature. Clumping, spiny, tough, hardy. Tolerates pots, rocky slopes.
Puya alpestrisPuya alpestris
height 1–3ft
width 2–6ft
tolerates Coast, Cold, Cool Summers, Drought, Fog, Pots, Rooftops, Neglect, Wind
water
needs
Low
water
info
Ensure good drainage. Allow to dry out between waterings. It may be beneficial to wet the foliage, especially when the soil is hard to reach.
Puyas may need no supplemental irrigation in coastal California once established, especially in foggy areas. They will however look better and grow faster if they are given occasional supplemental water in the dry season.
Native to the Mediterranean climate zone of Chile (where it’s called chagual), this succulent bromeliad tolerates our summer drought, especially in coastal areas.
They will need more summer irrigation in warm, dry places away from the coast.
hardy
to
17F
indoor
outdoor
Outdoor
drainage In Ground: Cactus Mix, In Pots: Cactus Mix
fertilizing Low Needs
origin Central Chile
california
native
No
sunset
zones
8, 9, 14–H1

Sunset Zones Map

Outdoor Exposure Guide

OUTDOOR EXPOSURE GUIDE

Full Sun
Six or more hours of sun beams directly landing on the plant's leaves.

Part Shade
Three to five hours of sun beams directly landing on the plant's leaves.

Part Sun
One to two hours of sun beams directly landing on the plants leaves.

Full Shade
The plant is never fully lit by sun beams, but is in a bright spot or has dappled sunbeams playing over the leaves throughout the day.

Deep Shade
The plant never has dappled light on the leaves, and is in a place that feels dim, even on a nice sunny day.

SUNSET ZONES MAP

Growing Notes

Perfect for decorating rocky areas, slopes, accenting flats, creating a protective barrier, attracting hummingbirds. Flowering may occur starting when the largest rosette reaches 10 inches tall by 20 inches wide. The flowering rosette dies while side pups continue expanding the clump. Flowers open successively over up to a month. The tower (up to 7’ tall) lasts much longer as fruits develop and ripen.

Special Interest

Flora Grubb’s encounter with the flower of Puya alpestris in San Francisco inspired her to move to California to work in gardens.
This species is one of the southernmost naturally occurring members of the tropical bromeliad family, which accounts for its hardiness to cold.
The most popular bromeliad in kitchens worldwide is the pineapple, Ananas comosa.