Riverside Hybrids

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Abnormalities
Hybrid pollen is often prone to deformations which can render it ineffective or sterile

About us
A bit about Passiflora, the site and acknowledgements.

Adhesion
How species avoid hybridizing with other species in the wild.

Ants
Often, but not always, beneficial to Passiflora.

Aridopsis study
Looks at the nature of the the bonding between the pollen and the stigma.

Art
Prints, paintings, pottery, glassware & more.

Articles
A small selection of articles re Passiflora.

Bats
Enter the nocturnal world of bats where they pollinate Passiflora with white flowers that often have a musky scent to attract them.

Bees
The most well known pollinators.

Butterflies
There is a unique special relationship between butterflies and Passiflora.

Conservation
Passiflora under threat.

Cuttings
Different ways to prepare cuttings.

Edible Fruit
Perhaps 40 or more Passiflora have fruit we would judge as being edible.

FAQ
A good place to start for basic passion flower advice.

Flies
More likely to be pollen thieves than pollinators for most Passiflora.

Flowering
Some Passiflora are very difficult to flower. A look at the genetics behind flowering.

Genetics
An insight into the complex genetic history of Passiflora.

Germination
Looking at all aspects of seed including germination tips.

Germination inhibitors
Little is known about what if any inhibitors are in Passiflora seed.

Germination promoters
A look at what works and what doesn't.

Greenfly & Blackfly
Minor biting damage but can introduce viruses.

Growing tips
Everything from cuttings to hardiness, seed sowing and more.

Hardiness
How to prepare the soil, hardiness, temperature ranges & overwintering passion flowers.

History
From the seventeeth century to date.

Hormones
Small organic compounds which help control the growth and development of plants.

Hummingbirds
Fascinating highly specialised birds that pollinate some of the most spectacular Passiflora.

Hybrids
Images & hardiness figures.

Hybridizing
Trying to produce new hybrids is fun.

Leaf rollers
Usually Tortrix moth caterpillars, only a threat to small plants.

Life cycle
From seed to fruit and back again.

Lifespan
How long do Passiflora live.

Lighting
Some tender passion flowers  may benefit from extra lighting.

Links
Where to buy Passiflora seed and plants and more.

Minerals
Learn more about plant mineral needs.

Moths
Some may pollinate Passiflora flowers on their visits.

Movies
Bees and flower movement.

My hybrids
Hybrids that I have named. All are commercially available.

Pests & diseases
How to deal with pests and other problems.

Pests overview
A look at how to keep your plants happy and avoid pests & diseases.

Pigments
Looking at chlorophylls, anthocyanins and carotenoids.

Plant food
Whether in the pot or the ground I use high Potassium feeds with micronutrients.

Passiflora Identification
Help to ID your passion flower.

Pollen
The science behind Passiflora pollen grains & their complex interactions with the stigma when pollination occurs.

Pollen overview
A definition of pollen and a look at its structure.

Pollinators
Information & images

Pollinators overview
Most Passiflora need pollinators but some can also self pollinate.

Polyploidy
Some new Passiflora hybrids are being created with polyploid chromosomes.

Preserving pollen
How to preserve pollen for SEM study or pollinating other flowers at a later time.

Registrar
Hybrid lists & how to register new cultivars & hybrids.

Scale insects
Sap suckers which can greatly weaken plants.

Science
From Passiflora articles to genetics, hormones, pollen, SEM images and more.

Seed
Looking at all aspects of seed including germination tips

Seed experiment
A small experiment on seed germination.

Seed germination
The basics of how to germinate Passiflora seed

Seed images
Images of a number of different types of Passiflora seed.

Seed overview
An overview including man's history of growing Passiflora from seed.

Seed SEM images
Incredible high magnification images up to x 10 000.

Seed storage
How to keep seed in optimum condition.

Self pollination
Looks at why some Passiflora self pollinate and the role of 'alien' pollen.

SEM
High magnification Passiflora flower, foliage, pollen & seed images.

SEM pollen
Stunning pictures of many different Passiflora hybrid and species pollen.

Slugs & snails
A big problem for some of us -they can strip and kill a small plant overnight.

Soil
Passiflorasoil types & mixes.

Species
Many images & hardiness figures.

Spider mite
Very hard to spot and very difficult to get rid of in greenhouses.

Style/stigma
A study of P. incarnata looking at how flower variations & style & stigma movement maximize fertility.

Toxicology
Passiflora contain some very interesting and powerful substances.

Viruses

Wasps
Nectar thieves and occasional pollinators on a few species.

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