Of course! Here are some unique and thoughtful gift ideas for your gardening-loving mom that aren’t tools:

1. **Personalized Garden Sign**: A custom-made sign with her name or a special message to adorn her garden space.

2. **Garden Journal or Planner**: A beautiful journal or planner where she can keep track of planting schedules, observations, and ideas for her garden.

3. **Botanical Art Prints**: High-quality prints or paintings of flowers or plants to decorate her garden shed or indoor space.

4. **Subscription to a Gardening Magazine**: A year-long subscription to a gardening magazine to keep her inspired and updated on the latest trends and techniques.

5. **Decorative Planters or Pots**: Unique or handmade pots or planters to add a touch of style to her garden.

6. **Gardening Books**: Books on topics like garden design, plant identification, or specific gardening styles she’s interested in exploring.

7. **Outdoor Garden Decor**: Decorative items such as wind chimes, garden stakes, or sculptures to enhance the ambiance of her garden.

8. **Herbal Tea Set**: A selection of herbal teas packaged in a charming basket, including herbs she can grow herself like mint, chamomile, or lavender.

9. **Bird Feeder or Birdhouse**: A beautiful bird feeder or birdhouse to attract more birds to her garden, adding to its natural charm.

10. **Workshop or Class**: Enroll her in a gardening workshop or class where she can learn new skills or techniques, or even something related to garden photography or botanical art.

11. **Garden-themed Jewelry**: A piece of jewelry inspired by nature, such as a necklace with a botanical motif or earrings shaped like flowers.

12. **Indoor Garden Kit**: A kit for growing herbs or small plants indoors, perfect for the winter months when outdoor gardening is limited.

Remember to consider her personal preferences and tastes when choosing the perfect gift. Happy birthday to your mom!