Below are the changes to gardening that have been detailed in the Patch Notes for 3.3. I will be collecting all data for the new flower pots and will eventually organize them into a section on the site. I plan to post updates here as more information becomes available from the community.

View 3.3 Patch Notes (Full Release)

All future updates will be posted on the actual Updates Page as well as on Facebook.

New items which can be purchased in exchange for Grand Company seals have been added:

Althyk Lavender Seeds
Voidrake Seeds

Purchased in exchange for Grand Company Seals for 500 seals each. Storm Private Third Class rank required.
The following items can now be purchased from the Resident Caretakers in each of the residential districts for 300 Credits each:

Althyk Lavender Seeds
Voidrake Seeds
A new furnishing, the flowerpot, has been added, allowing players to now cultivate crops indoors.

The flowerpot can be placed within free company estates, private estates, and even private chambers. This furnishing allows players to grow the exact same plants and crops as those in garden plots indoors. In addition to this, there are certain seeds which can only be cultivated in flowerpots. These plants will yield materials to craft gear.

Intercrossing cannot be done using flowerpots

Obtaining Flowerpots

Players can now purchase flowerpots from the Housing Merchant in each housing district. The number of flowerpots that may be placed in private estates and chambers is as follows:

Chamber SizeNumber of Flowerpots
Private Chamber2
Seed, soil and the cultivation process for flowerpots will work the same as outside gardening.
Flowerpot Plants

Players can use their flowerpot to cultivate seeds, which will yield materials for gear as well as flowers for their estate flower vases. Oldrose seeds, which can only be cultivated in flowerpots, are available in eight color variations, and players will be able to influence the ratio of these colors and the total crop yield by using the following fertilizers:

Red Pomace: increases the frequency of red
Blue Pomace: increases the frequency of blue
Mountain Pomace: increases the frequency of yellow

Fertilizers other than those listed above may be used on flowerpot plants, but will not influence color.

Oldrose seeds, red pomace, blue pomace, and mountain pomace can be purchased from the Material Supplier in each housing district.
A new furnishing, the flower vase, has been added, allowing players to display bouquets in their estates.

Fully grown plants can be plucked from flowerpots and placed in estate flower vases.

Obtaining Flower Vases

Flower vases can be purchased from the Housing Merchant in each housing district.

Placement and Functions

Flower vases can be placed in free company and private estates, as well as private chambers. By selecting the vase, players can place flowers cultivated in flowerpots in them.

Players can remove the flowers placed in their flower vases by targeting the vase and selecting Remove Flowers.

Removed flowers will be permanently lost
New crops have been added:

SeedItem Yielded
Firelight SeedsFire Shard
Icelight SeedsIce Shard
Windlight SeedsWind Shard
Earthlight SeedsEarth Shard
Levinlight SeedsLightning Shard
Waterlight SeedsWater Shard
Althyk Lavender SeedsAlthyk Lavender
Voidrake SeedsVoidrake
Oldrose SeedsOldrose
Crops can be exchanged for materials at residential area material suppliers.

You will be able to purchase the items listed below in exchange for Althyk lavender and voidrake crops.

Althyk Lavender
Adamantite Nugget x1 / Aurum Regis Nugget x2 / Abalathian Rock Salt x5 / Titanium Nugget x3 / Hardsilver Nugget x4

Gold Ore x3 / Darksteel Ore x3 / Volcanic Rock Salt x5 / Cobalt Ore x6 / Silver Ore x8
The following changes have been made to Retainer Ventures:

Tree Toad / Lowland Grape Seeds / Garlic Cloves / Buffalo Beans / Wild Onion Set / Lavender Seeds / Coerthan Carrot Seeds / La Noscean Lettuce Seeds / Olive Seeds / Gridanian Chestnut / Black Pepper Seeds / Dzemael Tomato / Vampire Plant / Honey Lemon / Prickly Pineapple / Apricot / La Noscean Leek / Unaspected Crystal / Dark Matter Cluster