Exactly as Vamp says. Even fully scrolled unless YOU as the player will be using good gear or plan to have more than 200-250agi then you may not each the 900spd you are hoping for.

My Earth knight has at the moment 211 agi (level 120 and 805spd spd naked. I had planed to stop at 250 but focusing on his INT at the moment) (as you can see 200 barely reaches 800spd and he's level 120. I'm sure later as he levels he will continue to add on spd, 2 per level. (he also gets that extra 10% agi boost for being a knight/seer.

I had read on another thread that you had only plan to get 100agi on your earth. So then that's 500 here or about. Even with good gear unless you have good spars you still need another 300 agi.

I use a Charlotte and she's only level 100 I later plan to get her higher once I get him and his pet to a certain level. She's not washed but has less than 700 spd (using her armlet and a crappy knight set). He has no saddle so rides her "bareback" still he manages to pull 100ish spd from her. (would probably be more with saddle if I could afford one or make better gear for her) He himself does not even use spd gear I have him using MATK to better help with his seals. So using her he only just reaches over 900. Barely. 909 if you want a number.

If you must know a knight can pull I believe 1/7 spd from a pet without a saddle. So as an example of 100spd he will get about 15 maybe 14. (I suck at maths now.. so correct me if I'm wrong.) If it is 1/5 then that's still a 20 of 100 you will get.

Saddles will get you 1/3 so of 100 that's maybe less than 35

So using a saddle plus knight boost that's 10/21 so then out of 100 that's about half or a little less than 50%.

I do not know if you plan to make your earth a seer or wit and use a saddle. Or a Knight cause you cannot afford a saddle. Either way these are some calculations that may help you reconsider the fact of adding gear to your flower.

Also check this link. http://forum.wl.igg.com/viewthread.php?tid=62794
It gives you a bit of tip and also tells you about most/some of the scrolled most wind pets (probably flower as well)

I also suggest using a level calculator to see what spd you will actually reach. you should be able to find one if you use search or Google. Keywords; WLO Stat Calculator.

EDIT; Sorry for my rambling. Seem while I was writing this you had posted a response, still hope you see and read this.