Business Details
18 Years
experience
Your Specialist Nursery in Upton Upon Severn
Established in 2008, GreenJJam is a specialist nursery based in Worcestershire, dedicated to supplying high-quality plants tailored to customers' specific needs. Our expertise lies in cultivating Penstemon varieties and a diverse range of cottage garden plants, shrubs, alpines, and herbs. We prioritise offering plants that thrive in individual garden conditions, avoiding impulse purchases that often lead to unsuitable choices.With a focus on comprehensive advice and sustainable growing practices, we propagate nearly all our stock on-site and hold multiple RHS Gold Medals, including recognition at the Chelsea Flower Show 2021. Our commitment to excellence ensures customers receive expert guidance and plants that flourish in their gardens.
Services
Penstemon plants
Cottage garden plants
Shrubs
Alpines
Herbs
White flowering plants
On-site propagation
RHS show exhibits
Plant advice
Show collections
Details
- Year established: 2008
Highlights and features
- We have over 15 years of experience in specialist plant cultivation.
- Our team provides comprehensive advice to ensure plant suitability.
- We hold multiple RHS Gold Medals, including at Chelsea Flower Show 2021.
- Almost all plants are propagated and grown on-site for quality control.
- We focus on sustainable practices and customer-specific plant selection.
Associations and certifications
- Royal Horticultural Society (RHS)
Services
Penstemon plants
Penstemon plants are hardy perennials ideal for sunny borders, offering drought resistance and vibrant summer blooms. They thrive in well-drained soil and require minimal maintenance. Our varieties are propagated on-site for robust growth and longevity.
Cottage garden plants
Cottage garden plants include a curated selection of traditional and rare species suited to informal, colourful gardens. These plants are grown to complement mixed borders and attract pollinators. Expert advice ensures suitability for local conditions.
White flowering plants
White flowering plants specialise in varieties that enhance gardens with crisp, elegant blooms. These plants are selected for their ability to thrive in specific light and soil conditions. Our White Nursery ensures quality and diversity in white-themed gardening.
Shrubs
Shrubs provide structure and year-round interest in gardens, with options for varying light and soil conditions. We offer hardy, locally sourced shrubs to ensure adaptability. Expert guidance helps select the right plants for long-term growth.
Plant advice
Plant advice includes tailored recommendations on species suitability, soil preparation, and maintenance. Our expertise ensures informed decisions for sustainable gardens. Services cover both on-site and show consultations.
People
Julia Mitchell
Co-Founder
Julia Mitchell co-founded GreenJJam in 2008, bringing over 15 years of horticultural expertise. She specialises in Penstemon cultivation and has led the nursery to multiple RHS Gold Medals, including at Chelsea Flower Show 2021.
Adam Mitchell
Co-Founder
Adam Mitchell co-founded GreenJJam, focusing on sustainable growing practices and plant propagation. His expertise in alpine and herb cultivation complements the nursery's diverse offerings, ensuring quality and innovation since 2008.
Questions
When is the nursery open?
The nursery aims to open in March annually, weather permitting, until 3rd May. Post-May hours depend on show commitments.
Do you offer mail order services?
Mail order is unavailable in 2025. Orders can be placed for collection at shows with at least seven days' notice.
How should I care for Penstemon plants?
Plant in full sun with well-drained soil. Prune in spring when new shoots appear and deadhead spent flowers for optimal growth.
Are plants available at shows?
Yes, a wide range of Penstemon varieties is available at RHS shows and events throughout the season.
What awards has GreenJJam won?
We hold multiple RHS Gold Medals, including at the Chelsea Flower Show 2021 and RHS Hampton Court 2021.
