I've created an enhanced gravity garden puzzle game with all the requested features:

**Core Features:**
- **Gravity Manipulation**: 5 gravity directions (up, down, left, right, zero-G)
- **Plant Growth**: 4 plant types with unique traits (Space Vine, Star Flower, Cosmic Tree, Crystal Bloom)
- **Resource Management**: Water and energy resources that deplete and regenerate
- **Environmental Challenges**: Zero-gravity zones and seasonal cycles

**Gameplay Mechanics:**
- Plants grow organically with branching segments following gravity direction
- Seasons affect growth rates (Spring: 1.5x, Summer: 1.2x, Autumn: 0.8x, Winter: 0.6x)
- Plant hybridization when placing similar plants nearby (6 hybrid combinations)
- Zero-G zones give bonuses to Crystal Blooms
- Resource generation from mature plants

**Visual Design:**
- Natural greens (#228B22) for plants
- Space blacks (#000000) for background
- Gravity field visualizations with blue gradients
- Purple zero-gravity zones with pulsing effects
- Animated stars and particles

**Sound Effects:**
- Plant growth sounds
- Gravity shift effects
- Hybrid discovery sounds
- Ambient space garden music

**Mobile Support:**
- Touch controls for planting
- Responsive UI panels
- Optimized button sizes

The game creates an ecosystem where you balance resources, manipulate gravity to guide plant growth, and discover hybrids by strategically placing plants near each other!