Business Details
46 Years
experience
Your Trusted Garden Center in Caledon, Ontario
Since 1980, Alton Greenhouses has been a trusted destination for gardening enthusiasts seeking premium plants and horticultural expertise. As a family-operated business spanning four generations, we combine decades of industry experience with a passion for cultivating high-quality annuals, perennials, shrubs, and specialty plants. Our 15,000-square-foot perennial house and extensive inventory reflect our commitment to offering diverse options for both casual gardeners and professional landscapers. We pride ourselves on personalized customer service, providing tailored advice to help clients achieve thriving gardens.With a legacy rooted in Alton Village since 1967, our team continues to innovate while maintaining traditional growing practices that ensure plant health and longevity. Our reputation for exceptional hanging baskets and seasonal displays has made us a regional favorite, serving communities across Ontario. Through educational resources and hands-on guidance, we empower customers to transform their outdoor spaces with confidence.
Services
Annual Plants
Perennials
Shrubs
Hanging Baskets
Potted Plants
Tropical Plants
Fruit Trees
Garden Decor
Soil Supplies
Fertilizers
Details
- Year established: 1980
Highlights and features
- Four generations of horticultural expertise since 1967
- 15,000 sq ft perennial house with mass planting options
- Custom-designed hanging baskets with unique color combinations
- Expert gardening advice for both residential and commercial clients
- Specialty plants including 4" potted annuals and 12" mixed baskets
Services
Annual Plants
We offer a comprehensive selection of 4" potted annuals and premium varieties for immediate garden impact. Our inventory includes sun-loving and shade-tolerant options perfect for seasonal color. Expert staff assist with plant compatibility and design schemes tailored to your specific growing conditions.
Perennials
With the largest perennial selection in the region, we provide over 15,000 sq ft of established plants for mass planting and garden revitalization. Our inventory includes deer-resistant varieties, drought-tolerant species, and pollinator-friendly options for sustainable landscaping solutions.
Custom Hanging Baskets
Our signature hanging baskets feature unique color combinations and compatible plant selections designed for sun or shade environments. Created with premium varieties and professional growing techniques, these baskets maintain their vibrancy throughout the growing season with proper care.
Tropical Plants
We cultivate a diverse collection of indoor and outdoor tropical specimens including succulents, streptocarpus, and mandevilla varieties. These heat-loving plants add dramatic visual interest to patios, poolsides, and interior spaces with proper winter protection.
Garden Shrubs
Our deciduous shrub collection includes flowering varieties with seasonal interest and foliage plants that provide structural elements. We carry hydrangeas, rose of sharon, and fruit-bearing shrubs with specialized growing advice for optimal performance in Ontario climates.
Questions
What are your current seasonal specialties?
We feature fall mums, winter urn arrangements, and holiday wreaths seasonally. Summer highlights include premium hanging baskets and tropical displays.
Do you offer bulk plant purchases for landscaping?
Yes, we maintain large quantities of perennials and shrubs for mass planting projects with professional consultation available.
Are gardening consultations available?
Our staff provides free basic gardening advice and plant selection guidance for both residential and commercial clients.
What payment methods do you accept?
We accept major credit cards, debit cards, and cash payments at our retail location.
Can I special order specific plant varieties?
We accommodate special requests when possible - contact us directly to discuss availability and lead times.
Do you offer delivery services?
Delivery options are available for large orders - please inquire at the sales desk for details and pricing.
Reviews (6)
Amber Graham
Aug 01, 2021
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Absolutely disappointed with how we were treated when we entered this green house. A man was painting on the other side of the door that's says entrance and come on in we're open. He got rude and told me "I closed that door for a reason." And that " you're lucky that something didn't fall on your head". Which is absolutely appalling because first of all it's the main entrance. Second of all there was no warning or caution sign. So if something did hurt me I'm able to sue you. So your lucky I didn't get harmed. I'm just appalled that this was my first experience. I was really excited to check
Kevin Pelling
Jun 21, 2021
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Friendly staff who are readily available to assist you with suggestions & recommendations for your gardening needs. Good selection of pots, annuals & perennials with detailed labels providing information on sun/shade requirements, pictures of the item in bloom, etc. Prices are reasonable given the very good quality of their products.
Yvonne De Viller
Jun 01, 2021
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Pride and perfection are evident in every plant! Outstanding variety and quality - this nursery should win the award for our region! may they continue for many years to come!
Marg Johnston
May 26, 2021
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Have been coming here for many years when we lived in the Orangeville area..now that we have moved to Owen Sound, we make a special trip to pick up hundreds of $$$ worth of plants every spring for our gardens there. By far the best greenhouse products we have found anywhere!!!! Worth the drive!!!!!
Sandy Blatherwick
May 25, 2021
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Thanks so much for your help on Sat. May 8th. My girlfriend had been looking for certain impatiens, one of the young ladies found 2 flats of the perfect pink! We dropped them off yesterday, my girlfriend gave me a virtual hug & I'm passing onto all who work at the nursery. You, on Saturday were her Lifesaver.
Dolleen Seto
May 21, 2021
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Love this family run place where you get to talk to the owners for expert advice. Always well staffed with energetic young people who are
eager to help. We look forward to getting plants from every spring.
eager to help. We look forward to getting plants from every spring.
