Colin Mills, compiler of the Hortus Camdenensis, died in late November 2012 after a short illness. As he always considered the Hortus his legacy, it is his family's intention to keep the site running in perpetuity. It will not, however, be updated in the near future.

Passiflora x caerulea-racemosa Sabine

Frost-tender, variable, vigorous climber with slender stems, 3-5-lobed leaves, to 15cm long, and bowl-shaped, red-purple flowers, to 13cm wide, with spreading corona filaments, purple-black at the base, white above, in summer and autumn, followed by ovoid green fruit. To 6m or more.  [RHSE, Hilliers’].

Horticultural & Botanical History

‘It is shewy, but we cannot go quite so far as Mr. Sabine in thinking that “it has taken from each parent those properties of their respective flowers which conduce most to their beauty, and united them in itself,” as in our opinion either of the parents is more beautiful.’  [LBC no.573/1821]. 

‘[In the case of] the mule Passion-flower raised by Mr. Milne, equally distinct plants, P. racemosa and P. caerulea, have not only produced a healthy, but, for one generation at least, a fertile progeny, we think amount[s] to a conclusive proof that distinctive species of plants will breed together, and that therefore mere breeding together is not, as has been for a long time supposed, an absolute test of a species.  But, admitting thus much, we still are of opinion, that, although really hybrid plants may be obtained by art, yet that they cannot be perpetuated beyond, at the most, three generations; and we are quite persuaded, that the numerous fertile productions among the tribes of Amaryllidae, which have been called hybrid, are either mere casual varieties of particular species, or raised, as in the genus Crinum, from a mixture of plants, not distinct species, but accidental aberrations from a common type.’  [BR f.848/1824].  First grown in 1820.  [Hilliers’].

History at Camden Park

Listed in all published catalogues [T.722/1843].


Published Jan 31, 2010 - 01:34 PM | Last updated Jul 29, 2010 - 02:06 PM

Figured are lobed leaves and mauve flowers with prominent, purple corona filaments.  Loddiges Botanical Cabinet no.573, 1821.

Passiflora x caerulea-racemosa Sabine | LBC no.573/1821 | RBGS

Family Passifloraceae
Region of origin

Garden origin

Common Name
Name in the Camden Park Record

Passiflora caerulea-racemosa 

Confidence level high