Calylophus hartwegii
🍃leaf (1)
🌸flower (5)
🌿habit (1)

Calylophus hartwegii

Hartweg's sundrops · Hartweg evening primrose · Sierra Sundrop · Sundrop

Tier 2 Difficulty: medium Water: low Light: full_sun
Water every
7 days
Temperature
5–35 °C
Soil pH
6–7
Hardiness
Zone 5–9
Click count
11
0

Description

Source: leafsnap

Calylophus hartwegii, commonly known as Hartweg's sundrops, is a perennial flowering plant native to the southwestern United States and northern Mexico. Belonging to the family Onagraceae, it is distinguished by its bright yellow flowers that bloom from late spring to early fall. The plant typically grows to a height of 1 to 2 feet and features narrow, green-gray leaves. It thrives in well-drained soil and full sun, making it an excellent choice for rock gardens or xeriscapes. Hartweg's sundrops are notable for their drought tolerance and their ability to attract pollinators such as bees, butterflies, and hummingbirds. With its vibrant blooms and low-maintenance nature, Calylophus hartwegii is a beautiful addition to any garden or landscape.

Care Guide

💧 Water Every 7 days
Suggested frequency: Every 7 days
☀️ Light Full sun

The sun-loving Hartweg's sundrops is a perennial herbaceous plant that usually grows in open environments like meadows and grasslands. While it generally prefers full sun exposure, it can also survive in partially sunny areas.

Ideal: Full sun
🌡️ Temperature 5–35°C

Hartweg's sundrops possesses the capacity to acclimate to diverse temperature variations, however, mixtures of heat and water conditions could still restrict its proliferation. It flourishes optimally in temperate weather during the summer months, given sufficient rain or hydration. Extended bouts of overcast and wet weather and protracted high temperatures can elevate the risk of the plant dying. During the cold season, appropriate safeguarding against low temperatures can enhance the survival prospects of Hartweg's sundrops.

Ideal temperature: 5–35°C
💨 Humidity
Humidity:
🪴 Soil 6-7
Soil pH: 6-7
🌱 Fertilizer

The optimal period to nourish a Hartweg's sundrops is in the initial part of spring when it comes out of dormancy and starts its growth phase. Fertilizing supplies important nutrients necessary for their healthy development. Even though the Hartweg's sundrops does not require a lot of fertilization, applying fertilizers once a year can improve its longevity and encourage the production of superior and more durable flowers.

🪴 Pot & Repot
✂️ Pruning
🌿 Propagating
🐛 Diseases & pets
☠️ Toxicity

Characteristics

Plant Type
Herb
Life Cycle
Perennial
Genus
Calylophus
Family
Onagraceae
Hardiness Zone
5-9
Mature Height
0 cm to 30 cm
Mature Spread
30 cm to 49 cm
Leaf Color
Green, Dark Green
Leaf Type
Deciduous
Flower Color
Yellow
Flower Size
3.05 cm to 5.08 cm
Bloom Time
Mid spring, Late spring, Early summer, Mid summer
Planting Time
Spring, Summer
Harvest Time
Summer, Early fall
Native Area
Mexico

Tags (6)

Common Names (4)

en Hartweg's sundrops
en Hartweg evening primrose
en Sierra Sundrop
en Sundrop