Humidify

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Humidify
Released15 May 2007 (Update)
MembersYes
LevelMagic 68
SpellbookLunar
TypeUtility
Experience65
Runes 1Fire 3Water 1Astral
Casting speed3 ticks
QuestDream Mentor
DescriptionFills certain vessels with water
Animation
Sound effect

Humidify is a Lunar spell that requires 68 Magic plus the quests Dream Mentor and Lunar Diplomacy to be cast. This spell will fill all empty water-carrying vessels in a player's inventory with a single cast including: buckets, fishbowls, jugs, vials, watering cans (including Gricoller's can), unwatered saplings, waterskins, bowls, and clay. It yields 65 experience per cast regardless of the number of vessels filled. It can also be used to extinguish the wall of flames in the Chambers of Xeric when fighting Great Olm or to refill waterskins in the Kharidian Desert instead of needing to cut cacti.

A steam battlestaff, twinflame staff, or staff of water and tome of fire or vice versa can be used for maximum efficiency. It can be used to train Magic while making profit from some of the items below:

To maximise experience per hour with this spell, put a fishbowl underneath the spell (similar to High Level Alchemy) and to the "F1" and "F6" keys (or custom F-keys) to switch between spellbook and inventory. Left-click empties the fishbowl. Casting High Level Alchemy is always cheaper when alchemising profitable items while this method always results in loss. Upon hearing the sound effect, all vessels have been filled.

Casting this spell while holding an empty waterskin in the desert is a requirement for the hard Desert diary.

Money making

The following money making guide is available for Humidify:

MethodHourly profitSkills
Humidifying clay712,310
  • Magic 68

Saplings

Because it is time consuming and gives little to no experience, planting tree seeds in filled plant pots to grow saplings is often skipped in favour of buying the saplings directly from the Grand Exchange. This opens up an opportunity to grow saplings for profit. Like all methods involving large amounts of buying and selling, which require a relatively high capital to start, it is recommended to test the market by growing one sapling first to make sure it is profitable.

To plant the seeds in the pots, use one of them on the other with a gardening trowel in your inventory. This produces a seedling. When all the plant pots are filled with seeds, cast Humidify to water them. These watered seedlings will take approximately five minutes to turn into saplings, but this will happen even when banked. Repeating this process quickly will make around 1,700 saplings an hour.

Please note that tree seeds have a relatively low buying limit, so you may want to stock up on them beforehand, or grow several different trees at once.

Click here to refresh the prices on the table below.

Tree seed Farming level required Seed price Sapling price Profit per seed Daily volume
Acorn 15 85 297 204.08 6381
Apple tree seed 27 13 209 188.08 5160
Willow seed 30 54 517 455.08 14623
Banana tree seed 33 32 86 46.08 2754
Teak seed 35 68 442 366.08 4448
Orange tree seed 39 32 93 53.08 1721
Curry tree seed 42 33 311 270.08 3208
Maple seed 45 3,365 4,262 889.08 25349
Pineapple seed 51 66 322 248.08 4512
Mahogany seed 55 208 725 509.08 11331
Papaya tree seed 57 1,369 2,113 736.08 16786
Yew seed 60 19,451 21,639 2,180.08 28250
Palm tree seed 68 16,421 17,966 1,537.08 18631
Calquat tree seed 72 476 1,189 705.08 10990
Magic seed 75 69,558 74,467 4,901.08 24381
Dragonfruit tree seed 81 136,077 141,133 5,048.08 5865
Celastrus seed 85 16,427 18,796 2,361.08 3871
Redwood tree seed 90 14,337 17,158 2,813.08 2396

Cost

Spell cost
InputCost
1 1 3 118
Combo runes
1 1 3 451
1 3 1 143
1 3 1 178
1 3 377
1 1 3 379
Main-hands
1 1 Alt103
1 3 Alt113
1 Alt98
Main and off-hands
1 3 113
1 3 113
1 1 103
1 Alt 98
1 Alt 98
1 Alt 98

Changes

Date Changes
21 January 2026
(Update)

The Humidify spell now works on the new seeds from Sailing as well, which are Camphor, Ironwood and Rosewood seeds.

14 August 2024
(Update)

The Humidify spell can now fill empty cups with water.

9 September 2021
(Update)

Gricoller's Watering Can may now be filled by casting the Humidify Spell.

30 October 2014
(Update | poll)

The Lunar spell Humidify will now work on saplings held in your inventory.

15 August 2013
(Update | poll)

The 'Humidify' spell can now be used to soften clay.

Source

Content from the Old School RuneScape Wiki (operated by Weird Gloop), licensed under CC BY-NC-SA 3.0.

Source siteOld School RuneScape Wiki
Canonical sourceHumidify
Content licenseCC BY-NC-SA 3.0
License statusdeclared
PictureHumidify · file details

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