Aristolochia pallida   Willd.

trivial name

size

habit

inflorescence

exposure

temperature range

humidity

water requirements

soil pH

propagation

difficulty

Pale Birthwort

approx. 30-50 cm

perennial, tuberous, suberect herb

pale yellow/brownish with a dark throat

part shade

20-40 °C in summer, hardy to -10 °C with isolation

> 50 %

moderately humid all year round

acidic

seeds (stratification period up to 2 years)

2 (1 = very easy, 5 = extremely difficult)


Aristolochia pallida is a rewarding and hardy species but still quite uncommon in cultivation.

 

The attractive flowers appear in clusters at the base of the perennial shoots, right at the beginning of the growth period in early spring.

As the season goes by, solely new leaves are produced which dry up in summer and the plant will draw back to hibernate with the help of its large globose tuber (which actually represents a compressed stem, not a tuber s.str. in a biological context)

 

A. pallida belongs to a group of several closely related species called pallida-complex.

The interspecific relationships have not been reviewed comprehensively throughout the distribution range yet which is especially interesting since intermediate forms/presumable hybrids and convergent species' characteristics are particularly common within this clade.