A 10- to 15-year vision for the botanical gardenAt its October 21 meeting, the Oro Valley Town Council received a presentation from Tohono Chul President and CEO Jamie Maslyn Larson and Board Vice Chair Gayle Mateer outlining an ambitious master plan for the 49-acre botanical garden. The plan envisions significant improvements to visitor facilities, accessibility, educational programs, and dining opportunities while preserving the natural Sonoran Desert setting that has defined Tohono Chul since its founding in 1985. The plan, unanimously approved by Tohono Chul's board in June, provides a roadmap for improvements over the next 10 to 15 years. Construction is not imminent, and additional design, financial planning, and fundraising will be needed.
Community input guides the proposed improvements
The master plan was developed with input from more than 800 participants, including visitors, members, volunteers, and staff. Their priorities included additional shade, improved restrooms, easier access, more educational opportunities, and preservation of the property's historic buildings. One of the most significant proposed changes is a redesigned entrance that would make it easier for visitors to find their way into and through the gardens. A new welcome center, pedestrian promenade, and gently sloping pathways would improve accessibility, particularly for visitors with mobility challenges and families with strollers.
New facilities and expanded educational opportunities
Proposed improvements include renovating the existing bistro, relocating and expanding the Desert Corner Nursery, and creating a new village area featuring locally produced arts, crafts, food, and refreshments. The plan also calls for expanded indoor and outdoor educational facilities, improvements to the Desert Palm Oasis Garden, and additional areas for art exhibits and community gatherings. An outdoor learning area at the Sinagua Garden would support children's programs and adult education. Larson emphasized that proposed new buildings would occupy existing disturbed areas or parking spaces rather than undisturbed desert land.
Growing attendance strengthens Tohono Chul's economic importance
Tohono Chul representatives reported that attendance has increased 76% since before the pandemic, while annual children's participation has grown from approximately 2,200 to more than 13,000. A University of Arizona Eller College study estimated the garden's annual economic impact at $7.35 million in 2025. The organization employs 35 full-time and five part-time employees and operates with an annual budget of approximately $5 million. Representatives also announced that Tohono Chul had recently been listed as a historic district on the National Register of Historic Places, providing additional recognition of its cultural and historical significance.
Implementation will depend on funding and continued planning
The master plan establishes a long-term vision rather than a commitment to begin construction. Tohono Chul is pursuing additional design work, construction planning, business analysis, and fundraising to determine how improvements can be implemented. The organization also hopes to coordinate with Oro Valley on a proposed multiuse pathway along Ina Road and Paseo del Norte that would improve pedestrian and bicycle access to the gardens. The plan seeks to accommodate growing attendance and strengthen Tohono Chul's role as a regional destination while preserving the quiet desert environment envisioned by its founders.





