Greenhouse (IoH)

Greenhouse is one of the Ranch Buildings in Harvest Moon: Island of Happiness. 

The player placing a sun into the receptacle in the Greenhouse

You can grow any seasonal crops in the Greenhouse and it cannot be destroyed during storms.

Gannon will build the basic Greenhouse for 4000 pieces of Wood Lumber and 300,000 G. If you have enough money but not the necessary wood, you can pay him 500,000 G instead. The initial order only gets you the basic building. You will have to pay additional money for a shipping bin and watering trough inside of the Greenhouse.

• Greenhouse, small » 4000 Wood Lumber and 300,000 G or 500,000 G
• Greenhouse, large » 9000 Wood Lumber and 500,000 G or 950,000 G
• Shipping Bin » 200 Wood Lumber and 1000 G or 10,000 G
• Watering Trough » 400 Wood Lumber and 500,000 G or 520,000 G

The tillable area in the small Greenhouse is 16x8, while the large Greenhouse is 16x17. The internal season of the Greenhouse can be set by buying the respective Sun from Chen, costing 1,000 G. The Suns only appear in the shop once you've placed an order at Gannon's Shop to build the Greenhouse.

Besides being able to grow crops from any season, the steady weather of the Greenhouse positively affects the rank of your crops. Your crops will always receive 1 Sun Point each day when grown inside the greenhouse. The sun stone's rank does not matter; an S-Rank stone works just as well as a B-Rank stone.

Fruit Trees in the Greenhouse

You can also plant Fruit Trees in the Greenhouse, though it requires some additional effort.

To start, plant the tree seeds as you normally would if you were outside. The trees will likely grow a little bit faster since they receive a constant 1 Sun Point every day. You'll need to manage their Water Points yourself. After the trees reach full growth, you'll need to start doing some juggling.

You will need to purchase 1 of each Sun stone from Chen's Shop, including the otherwise-useless Winter Sun. Each day after the tree fully matures, put in the next seasonal Sun in order to rotate through the "year" in your Greenhouse to reach the season the tree blooms in. Once you are in the tree's blooming season, water it until the flowers appear. Then, switch the season to match with the tree's fruit production, go to bed, and fruit will be able to be harvested the next day. 

Tree in a greenhouse

For example, if you plant a Peach Tree in your Greenhouse when the season was set for Summer, it would take at least 57 days to grow into a tall, mature tree, at which point you would begin juggling:

• Day 1 - The tree has matured. Take the Summer Sun from your stone holder and replace it with a Fall Sun.
• Day 2 - Remove the Fall Sun, replacing it with a Winter Sun. Your tree will look like it has snow on its branches.
• Day 3 - Take out the Winter Sun, replacing it with a Spring Sun, the season where Peach Trees bloom. The Peach Tree will not automatically start blooming; you have to meet the Sun and Water requirements (at least 5 Sun and 3 Water) before flowers will appear for the first time. Water the mature tree once and the Spring Sun will give it 1 Sun Point.
• Day 4 & 5 - Again, water the tree once and let the Greenhouse work its magic.
• Day 6 & 7 - You have the necessary 3 Water Points now, so you just have to wait for the Sun Points to tally up.
• Day 8 - The Peach should now have bright pink flowers on it. It's once again time to switch seasons! Take the Spring Sun from the stone holder and toss in the Summer Sun.
• Day 9 - When you enter your Greenhouse, you'll see nice pink fruit waiting on the ground for you to pick up. The tree will continue to produce fruit as long as it gets the minimum 5 Sun and 3 Water.

You can change out your suns and the Peach Tree will stick around as long as it does not receive more than 120 Sun and/or Water Points while in its dormant no-fruit-production mode. Because of this, it's recommended to do the year-juggle back to Spring to make the tree bloom in order to reset the points it received from being a plain tree about every season and a half.