Aristolochia macrophylla

Aristolochia macrophylla
Dutchman's pipe

SIZE/TYPE	vine
USUAL HEIGHT	5-9m
USUAL WIDTH	3-9m
LEAVES	deciduous broadleaf
COLOUR OF LEAVES	green
FLOWERS	less showy but noticeable
COLOUR OF FLOWERS	+multicolored:cream and deep red
BLOOMING TIME	July - August
LOCATION	full to partial sun
SOIL TYPE	any (acidic to alkaline)
SOIL MOISTURE REQUIREMENTS	evenly moist (dislikes drought)
USDA zone (lowest)	4 (down to -34°C)
WINTER PROTECTION
FOR ZONE 5+6
FOR ZONE 7
BELONGS TO CATEGORIES	Deciduous broadleaf Exotics

Dutchman's pipe is a vigorous climber native to America, found in moist woodlands from N.E.Canada to S.E.USA. It is cultivated for its dramatic large foliage which looks as if just escaped from a rainforest. The deciduous leaves are 10-30 cm across, fresh green, heart-shaped. In summer small pipe-like, sandy beige flowers are hidden under the foliage.

Once established it grows very fast making about 1 meter per year or more. It quickly covers its support, be it a single post or a fence. Make sure to provide strong support - adult plants are quite heavy.

Dutchman's pine likes deep, humus-rich, moist but well-drained soil and full sun. It does not require any fertilizing and can be pruned in summer after flowering or in early spring. Being more difficult to propagate young plants tend to be much more expensive compared to other vines of the same size. Very hardy to about -34°C (USDA zone 4).

Last update 07-12-2016.

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GLOSSARY

STANDARD QUALITY - Plants of this group are 1st class quality with number of branches and overall density adequate to their size and age, considering they were container grown.
DE LUXE QUALITY - This label guarantees a luxurious quality of manually selected plants that, compared to their height and age, are exceptionally dense and beautiful.
EXTRA - These plants are usually mature and bigger specimens with exceptional overall appearance.
STANDARD (as described in the plant form) means a tree with a trunk of 190-210 cm and a crown at the top, unless specified differently. The commercial size for trees is their girth measured in the height of 1m from ground.
HOBBY - These plants are of the same quality as our standard-quality plants but younger and therefore cheaper.
SHRUB - a woody plant with branches growing bushy from the ground level.
HALF-STANDARD or MINI-STANDARD - a small tree with shorter trunk, its size is usually specified.
FEATHERED - These are trees with branches growing already from the base of the trunk and up along the stem.
GRASSES and PERENNIALS - Sizes given usually read the diameter of the pot or the clump, as specified.