Prickly plants to deter unwanted visitors

Berberis Julianae
Prickly yellow, early flowering species. Evergreen with shiny dark leaves (4-6')

Mahonia Bealei - Winter Sun
Prickly evergreen with yellow fragrant flowers in winter (4-5')

Ulex Europaeus - Common Gorse.
A vicious spiny plant that provides excellent protection for boundaries. Flowers March-May (4-5')

Pyracantha
A climbing evergreen with yellow, red or orange berries. White flowers in May on thorny branches. Very useful on fences and walls. (10-15')

Hippanphae Rhamniodes - Sea Buckthorn. Grows in any soil and is wind resitant. Silver foilage and plentyful thorns. A large shrub that provides great cover. Plant in groups of three to obtain berries.

Berberis Ottawensis Superba
Use this as a hedge or individual shrub. Deciduous barbed plant with glorious purple foliage. Yellow flowers in spring. (5-6') Allow two plants per metre

Berberis Stenophylla
Use as a hedge or shrub. A graceful evergreen with long, arching, prickly branches.Masses of yellow flowers in Spring. (4-6') allow two plants per metre

Berberis Gagnepainii
A small, dense, prickly evergreen, suitable also as a low hedge. Impenetrable! Allow two plants per metre.

Crataegus Monogyna - Common Hawthorn. An impenetrable thorny hedge that attains the height of your choice. Fast growing, stunning plant, with beautiful fragrant flowers in May and June and red haws in the autumn. Plant in a staggered row, 4 to one metre.

Rosa Fruhlings Gold-Yellow  
Fragrant old fashioned rose. Densly prickly for hedges or individual shrubs, up to 2-3m high.

Rosa Rugosa Rubra Crimson  
Fragrant old fashioned rose. Densly prickly for hedges or individual shrubs, up to 2m high.

Rosa Blanc Double de Coubert
White fragrant old fashioned rose. Densly prickly for hedges or individual shrubs, up to 2m high.