It is helpful to have some sort of guide when making any type of beer or wine. When it comes to mead though, it is style that can be so abstract, and you have so much freedom, it’s nice to have some sort of guidelines to give a helping hand.
This information can be found probably the best mead book out there in my opinion, The Compleat Meadmaker by Ken Schram.
When adding fruit to a mead, it’s best to know how much to add of what fruit in order to get the flavor you intend in your mead. There really isn’t a rule of thumb saying, “Add 3 lbs of every type of fruit to get a light flavor and 6 lbs of any fruit to get heavier flavor”. Different fruit gives different amounts of flavor. That is why this is so helpful. All of these additions would take place in Secondary and all are for 5 gallons of mead.
Blueberries
Mild Fruit Character – 5 lbs in secondary
Medium Fruit Character – 7 lbs in secondary
Strong Fruit Character – 11 lbs or more in secondary
Cherries Sweet
Mild Fruit Character – 5 lbs in secondary
Medium Fruit Character – 7 lbs in secondary
Strong Fruit Character – 10 lbs or more in secondary
Citrus Fruits
Mild Fruit Character – 5 lbs in secondary
Medium Fruit Character – 7 lbs in secondary
Strong Fruit Character – 9 lbs or more in secondary
Melons 
Mild Fruit Character – 3 lbs to 5 lbs in secondary
Medium Fruit Character – 7 lbs in secondary
Strong Fruit Character – 9 lbs or more in secondary
Peaches 
Mild Fruit Character – 5 lbs to 7 lbs in secondary
Medium Fruit Character – 10 lbs in secondary
Strong Fruit Character – 13 lbs or more in secondary
Pears
Mild Fruit Character – 5 lbs to 7 lbs in secondary
Medium Fruit Character – 9 lbs in secondary
Strong Fruit Character – 11 lbs or more in secondary
Plums (use skins as well) 
Mild Fruit Character – 4 lbs to 6 lbs in secondary
Medium Fruit Character – 8 lbs in secondary
Strong Fruit Character – 10 lbs or more in secondary
Raspberries
Mild Fruit Character – 2 lbs to 4 lbs in secondary
Medium Fruit Character – 6 lbs in secondary
Strong Fruit Character – 8 lbs or more in secondary
Strawberries 
Mild Fruit Character – 5 lbs to 7 lbs in secondary
Medium Fruit Character – 11 lbs in secondary
Strong Fruit Character – 13 lbs or more in secondary
A note should be that after your mead has hit the ABV of about 10% you can really add fruit with out much sanitation even though it is good practice to do so regardless.
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Jay's Brewing Blog 
October 27, 2016 at 4:15 pm
I’m interested in making mead for family for Christmas but I’m currently attempting to make a rough estimate about how much mead this could be made into. If I’m only making 3 gallons worth this might be excessive proportions is all o_o
December 14, 2016 at 9:07 am
Hello Michele, first off thanks for your question. When it comes to proportions and mead it all really depends on how strong of flavor your looking to have. That being said here is some smaller increments. If you want a mild flavor 3 pounds 5 for a medium and 8 for a strong flavor.