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An elegant form of the Polypodium vulgare. The fronds are very finely divided.

Polypodium Vulgare Elegantissimum

An elegant form of the Polypodium vulgare. The fronds are very finely divided.

Also known as Pontederia cordata. A blue plant with numerous spikes of blue flowers. It generally is found growing in shallow waters.

Pickerelweed

Also known as Pontederia cordata. A blue plant with numerous spikes of blue flowers. It generally is…

A white fragrant flower, with a spreading star-shaped limb.

Posoqueria Multriflora

A white fragrant flower, with a spreading star-shaped limb.

A pan designed to hold growing fern plants.

Fern Pan

A pan designed to hold growing fern plants.

A slightly-toothed fern with fronds ranging between 1 foot and 2 feet in length. It is a long and slender plant, commonly found in tropical America.

Pteris Denticulata

A slightly-toothed fern with fronds ranging between 1 foot and 2 feet in length. It is a long and slender…

A large-fronded fern with straw-colored leaves. It is commonly found in tropical America.

Pteris Grandifolia

A large-fronded fern with straw-colored leaves. It is commonly found in tropical America.

A slender-fronded fern with straw-colored leaves. The fronds can reach between 9 inches and 12 inches in length. It is commonly found in Brazil.

Pteris Leptophylla

A slender-fronded fern with straw-colored leaves. The fronds can reach between 9 inches and 12 inches…

An arrow-fronded fern with blackish, long leaves. They are common between Venezuela and Brazil.

Pteris Sagittifolia

An arrow-fronded fern with blackish, long leaves. They are common between Venezuela and Brazil.

A wide-creeping fern with long reddish-brown fronds, which grow to be approximately 1 foot in length. They are usually found in New Zealand.

Pteris Scaberula

A wide-creeping fern with long reddish-brown fronds, which grow to be approximately 1 foot in length.…

A bright brown fern with fronds reaching between 1 foot and 1.5 feet. They are commonly found in the East Indies.

Pteris Semipinnata

A bright brown fern with fronds reaching between 1 foot and 1.5 feet. They are commonly found in the…

A slender-fronded fern with pinnae that are narrower than those of a regular Pteris serrulata, and has saw-edged leaves. They are commonly found in China.

Pteris Serrulata Tenuifolia

A slender-fronded fern with pinnae that are narrower than those of a regular Pteris serrulata, and has…

A trembling fern with fronds ranging between 2 feet and 4 feet in length, and 6 inches and 2 feet in width. They are commonly found in greenhouses in New Zealand and Australia.

Pteris Tremula

A trembling fern with fronds ranging between 2 feet and 4 feet in length, and 6 inches and 2 feet in…

A shrub that is native to Europe, northwest Africa, and western Asia. It reaches up to 13 feet in height, and is covered in small oval leaves and yellow flowers. The fruit produced on this shrub is sour, but edible, and rich in Vitamin C.

Berberis Vulgaris

A shrub that is native to Europe, northwest Africa, and western Asia. It reaches up to 13 feet in height,…

A blue flower with calyx longer than the tube of the corolla. They typically bloom in April and May, and are found in Europe and Siberia.

Pulmonaria Mollis

A blue flower with calyx longer than the tube of the corolla. They typically bloom in April and May,…

A pink flower that typically blooms in the Spring. The plant has been used for centuries as a medicinal herb, and the leaves are commonly eaten by caterpillars. They reach up to 1 foot in height.

Pulmonaris Officinalis

A pink flower that typically blooms in the Spring. The plant has been used for centuries as a medicinal…

A pink flower that typically blooms in June. The elliptical leaves are dark green, with silver specks that give it a marbled appearance. They are usually found in Europe.

Pulmonaria Saccharata

A pink flower that typically blooms in June. The elliptical leaves are dark green, with silver specks…

Also known as Punica granatum. The fruits are red and have the ability to grow through droughts. They tend to bloom between June and September, and grow up to 15 feet and 30 feet.

Pomegranate

Also known as Punica granatum. The fruits are red and have the ability to grow through droughts. They…

A white flower with stripes of blue down the center. It typically blooms in the Spring, and is found in Asia and the Middle East. The leaves grow in twos, and are strap-like.

Puschkinia Scilloides

A white flower with stripes of blue down the center. It typically blooms in the Spring, and is found…

A shrubby flower with white petals. It can grow up to 3 feet, and is native to the Canary Islands.

Pyrethrum Frutescens

A shrubby flower with white petals. It can grow up to 3 feet, and is native to the Canary Islands.

A plant with solitary pink flowers, with yellow disks. They generally reach up to 2 feet in height, and is largely used in the manufacture of insect powders.

Pyrethrum Roseum Flore-Pleno

A plant with solitary pink flowers, with yellow disks. They generally reach up to 2 feet in height,…

A depiction of the upper portion of the Pyrethrum roseum.

Pyrethrum Roseum

A depiction of the upper portion of the Pyrethrum roseum.

A tree which produces dark red flowers and fragrant green leaves. The leaves are oval and serrated. They are native to Japan.

Pyrus Japonica

A tree which produces dark red flowers and fragrant green leaves. The leaves are oval and serrated.…

A plant which grows peculiar white fruits.

Pyrus Leucocarpa

A plant which grows peculiar white fruits.

A plant which produces brightly-colored fruits, approximately 1.5 inches in diameter. They generally grow up to 20 feet in height, and are native to Europe.

Pyrus Malus Bertini

A plant which produces brightly-colored fruits, approximately 1.5 inches in diameter. They generally…

A plant which consists of long, persistent calyx segments. They generally grow up to 20 feet in height, and are native to Europe.

Pyrus Malus Crataegina

A plant which consists of long, persistent calyx segments. They generally grow up to 20 feet in height,…

Also known as Quisqualis indica. A vine with red flower clusters that can grow between 2.5 meters and 8 meters. It is commonly found in Asia.

Chinese Honeysuckle

Also known as Quisqualis indica. A vine with red flower clusters that can grow between 2.5 meters and…

A large genus of about 600 species of plants, including buttercups and spearworts. They are mostly bright yellow or white, with a yellow center.

Garden Ranunculus

A large genus of about 600 species of plants, including buttercups and spearworts. They are mostly bright…

A perennial flower with white petals and green foliage. They tend to bloom in April and May, and are found in the Western Alps.

Ranunculus Amplexicaulis

A perennial flower with white petals and green foliage. They tend to bloom in April and May, and are…

Also known as Ranunculus asiaticus. A herbaceous perennial plant with red or pink flowers. The stems are simple and branched at the base. They generally bloom in May and June.

Persian Buttercup

Also known as Ranunculus asiaticus. A herbaceous perennial plant with red or pink flowers. The stems…

Also known as Rhamnus cathartica. It is a deciduous shrub with grey-brown bark and spiny branches. The leaves are ovate and acutely serrated. The height of this plant reaches between 5 feet and 10 feet.

Buckthorn

Also known as Rhamnus cathartica. It is a deciduous shrub with grey-brown bark and spiny branches. The…

A plant with dense amounts of leaves. The stems grow up to 5 feet, and are commonly found in Siberia.

Rheum Undulatum

A plant with dense amounts of leaves. The stems grow up to 5 feet, and are commonly found in Siberia.

A plant which produces flowers with 7 to 8 white petals. The stamens are very numerous. They bloom between February and April, and are found in Central America.

Rhipsalis Funalis

A plant which produces flowers with 7 to 8 white petals. The stamens are very numerous. They bloom between…

An evergreen shrub with bright red flowers. It usually reaches between 20 and 25 feet, and is commonly found in Thailand, Nepal, and India.

Rhododendron Arboreum

An evergreen shrub with bright red flowers. It usually reaches between 20 and 25 feet, and is commonly…

A dense shrub with evergreen leaves and purple flowers, and is used as an ornamental plant. Honey produced with the pollen of the flowers of this plant have been known to be poisonous to human consumption. It is commonly found in Asia.

Rhododendron Ponticum

A dense shrub with evergreen leaves and purple flowers, and is used as an ornamental plant. Honey produced…

A pink flower with corolla white tubes. It is a hybrid greenhouse Rhododendron.

Rhododendron Taylori

A pink flower with corolla white tubes. It is a hybrid greenhouse Rhododendron.

A palm tree that is commonly found in Australia and New Zealand. They tend to reach about 32 feet, and the fruits grown turn bright red when ripe.

Rhopalostylis Baueri

A palm tree that is commonly found in Australia and New Zealand. They tend to reach about 32 feet, and…

A greenish-red plant with laciniate-cut leaves. In the spring, edible crimson berries are produced and remain throughout the winter.

Rhus Glabra Laciniata

A greenish-red plant with laciniate-cut leaves. In the spring, edible crimson berries are produced and…

Also known as Nematus ribesii. A common pest of gooseberries.

Gooseberry Sawfly

Also known as Nematus ribesii. A common pest of gooseberries.

A variable flower with red petals and leathery, ovate leaves. The prickles are unequally distributed, and it commonly reaches between 2 ft and 3 ft.

Rosa Gallica

A variable flower with red petals and leathery, ovate leaves. The prickles are unequally distributed,…

A parasite which feeds as larvae in rose-twigs or upon the leaves. Some species are confined to roses for their food, while others can also feed on other plants.

Larvae of Rose Sawfly

A parasite which feeds as larvae in rose-twigs or upon the leaves. Some species are confined to roses…

Also known as Rudbeckia purpurea and Echinacea purpurea. A flower with lavender drooping petals surrounding a brownish central disk.

Purple Coneflower

Also known as Rudbeckia purpurea and Echinacea purpurea. A flower with lavender drooping petals surrounding…

Also known as Butcher's broom. A shrub with flat shoots that give the appearance of stiff, spine-tipped leaves. It has been known to enhance blood flow to the brain, legs, and hands, and has been used to relieve constipation and water retention.

Ruscus Aculeatus

Also known as Butcher's broom. A shrub with flat shoots that give the appearance of stiff, spine-tipped…

A crowded species of sugar cane. The branches grow up to 12 inches in length, and the stems up to 7 feet high. It is native to Algeria.

Saccharum Aegyptiacum

A crowded species of sugar cane. The branches grow up to 12 inches in length, and the stems up to 7…

A window pot fence.

Window Pot Fence

A window pot fence.

A window shelf for holding plants. They can be used either indoors or outdoors.

Window Shelf

A window shelf for holding plants. They can be used either indoors or outdoors.

A window with an ivy trellis, or a structure to support plants.

Window with Ivy Trellis

A window with an ivy trellis, or a structure to support plants.

A small garden of plants by a window.

Window Garden

A small garden of plants by a window.

A conservatory with numerous plants near the bay window.

Bay Window Conservatory

A conservatory with numerous plants near the bay window.

A cabinet filled with decorative plants.

A Plant Cabinet

A cabinet filled with decorative plants.

A small decorative box used for holding plants near a window.

Small Window Box

A small decorative box used for holding plants near a window.

A large decorative box used for holding plants near the windows.

Large Window Box

A large decorative box used for holding plants near the windows.

A decorative pot used for holding plants.

Jardiniere

A decorative pot used for holding plants.

An elastic plant sprinkler, which is useful for washing dust off plants.

Elastic Plant Sprinkler

An elastic plant sprinkler, which is useful for washing dust off plants.

A brass syringe, which is useful for washing dust off plants.

Brass Syringe

A brass syringe, which is useful for washing dust off plants.

A tool used for washing dust off plants.

Parlor Syringe

A tool used for washing dust off plants.

A tool used in washing the dust off plants. It can also wash the eggs of insects off the leaves before they have a chance to hatch.

Fountain Pump

A tool used in washing the dust off plants. It can also wash the eggs of insects off the leaves before…

"If the plants are too tall or spindling, and you wish to have them dwarf and bushy, cut off the crown or center stalk as low as you wish to have the plant. This will force the plant to start or send out new branches from the sides of the old stalk."—Heinrich, 1887

When to Prune

"If the plants are too tall or spindling, and you wish to have them dwarf and bushy, cut off the crown…

A pair of pruning shears used for larger plants.

Pruning Shears

A pair of pruning shears used for larger plants.

A knife used for pruning plants.

Pruning Knife

A knife used for pruning plants.

A tool used to assist in watering plants.

Watering Pot

A tool used to assist in watering plants.