Whisper of the House Guide | How to Grow Flowers
Here is a complete guide on how to grow flowers in Whisper of the House.
Game Guide by Subyunplugged on Oct 06, 2025
One of the most enjoyable activities in Whisper of the Heart is growing flowers, especially for completing the Flower Collection and unlocking the Alien Flower Achievement.
Each flower requires a specific combination of soil, nutrient solution, and cultivation seeds. If you experiment with different materials in the Flower Shop's garden, you will discover all flower types.

Alien Flower (Achievement Unlock)
Alien Soil + Alien Nutrient Solution + Special Cultivation Seeds Number 3
Flower Type 1
Sandy Soil + Acid Nutrient Solution + Special Cultivation Seeds Number 1
Flower Type 2
Red Soil + Crimson Nutrient Solution + Special Cultivation Seeds Number 1
Flower Type 3
Magic Soil + Crimson Nutrient Solution + Special Cultivation Seeds Number 1
Flower Type 4
Red Soil + Alien Nutrient Solution + Special Cultivation Seeds Number 2
Flower Type 5
Magic Soil + Magic Nutrient Solution + Special Cultivation Seeds Number 2
Flower Type 6
Sandy Soil + Alien Nutrient Solution + Special Cultivation Seeds Number 3
Flower Type 7
Magic Soil + Alien Nutrient Solution + Special Cultivation Seeds Number 3

Once you have completed and successfully cultivated the combination, the entire flower collection will be complete. And this will unlock the Alien Flower Achievement.
Each flower will add beauty to the garden and contribute to the completion progress in Whisper of the Heart.
Also, check our other guides:
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